LaTex Code Snippet to print sheet numbers in the trim area using memoir package and other loaded packages accompanying this question on StackExchange: http://tex.stackexchange.com/questions/263067/memoir-sheetsequence-counter-does-not-increment

minimal-not-working-example.tex

\documentclass[a4paper]{memoir}
\usepackage{etoolbox}
\usepackage{bidi}
\begin{document}

\def\do#1{\thesheetsequence\newpage}
\docsvlist{1,2,3,4,5,6,7,8,9}

\end{document}

packages.tex

\usepackage{ifxetex}
\usepackage{ifpdf}

\usepackage{graphicx}       % standard LaTeX graphics tool when including figure files
	\graphicspath{{./figures/}}
	\DeclareGraphicsExtensions{.pdf,.jpeg,.png,.jpg,.eps}
	
\usepackage{array}			% improves the standard LaTeX2e array and tabular environments to provide better appearance and additional user controls.

\usepackage[caption=false,font=footnotesize]{subfig}

\usepackage{sidecap}	% for side captions (use \begin{SCfigure})

\usepackage{verbatimbox}	% for \begin{verbbox} and \theverbbox

\ifxetex
	\usepackage{fontspec} % Required for specifying custom fonts in XeTeX
	\setmainfont{Gentium Book Basic}
	\setsansfont[Scale=MatchLowercase]{Open Sans}
	\setmonofont[Scale=MatchLowercase]{Inconsolata}
\else
	\usepackage[T1]{fontenc} % support for accents
	\usepackage[utf8]{inputenx} % support for accents
	\usepackage{lmodern}
\fi

\usepackage{amssymb}
\usepackage{wasysym}

\usepackage[main=english,dutch]{babel} % English / Dutch language/hyphenation
\usepackage{microtype} % Slightly tweak font spacing for aesthetics

\usepackage{xspace}   % used in \newcommands, takes care of automatically insertion of space

\usepackage{paralist}		% for \begin{inparaenum}[(i)] \item \end{inparaenum}
\usepackage{enumitem}		% for [noitemsep,topsep=0pt] to adjust spacing

\usepackage{color} 	% used in \newcommands, a colorful text is better ;-)
\usepackage[usenames,dvipsnames,table]{xcolor}       % required for the linkbordercolor option of the hyperref package

\usepackage[normalem]{ulem}	% for \revdel which is using \sout to strike out
\usepackage{soul}		% for \hl{}

\usepackage{url}    % for \url{}

\usepackage[hidelinks]{hyperref} % Required for links and changing link options
\hypersetup{
	pdfauthor={Shayan}, 
	pdftitle={Title}, 
	pdfsubject={Shayan's Document},
	pdfkeywords={Keyword1, Keyword2}, 
	pdfdisplaydoctitle=true, 
	bookmarks=true, 
	bookmarksnumbered=true, 
	breaklinks=true
}
\def\sectionautorefname{Section}
\def\subsectionautorefname{Section}
\def\figureautorefname{Figure}
\def\subfigureautorefname{Figure}
\def\chapterautorefname{Chapter}

\usepackage[printonlyused]{acronym} % Include a list of acronyms

\usepackage{rotating}	% for vertical rotated text in table cells use \begin{sideways}rotated text\end{sideways}
						% also for rotated figures (use \begin{sidewaysfigure})
						
\usepackage{multirow}	% for \multirow{3}{*}{Text}
\usepackage{booktabs}	% Professional tables (\toprule, \midrule, \bottomrule)
\usepackage{xtab}		% Break tables across pages (see Portfolio)
\usepackage{diagbox}	% Diagonal box in table

\usepackage{chapterthumb}	% read the chapterthumb.sty
\usepackage[headsepline]{scrlayer-scrpage}	% required for the chapterthum

\usepackage[
backend=bibtex,
style=numeric-comp,
firstinits=true,
minnames=1,
maxnames=3
]{biblatex}			% decent management of bibtex


\usepackage{etoolbox}	% for the following patch
% reset acronyms for each chapter
\preto\chapter\acresetall

\usepackage{metalogo}	% for \TeX  \XeTeX  \LuaTeX  \LaTeX  \XeLaTeX  \LuaLaTeX  \LaTeXe

\usepackage[super]{nth}	% for \nth{1} \nth{2} and so on

\usepackage{eso-pic}

\usepackage{bidi}% this should be the last package to load.

sheet-number.tex

\quarkmarks

\renewcommand*{\tmarktl}{\registrationColour{%
  \begin{picture}(0,0)
    \setlength{\unitlength}{1bp}\thicklines
    \put(-36,0){\line(1,0){24}}
    \put(0,12){\line(0,1){24}}
    \put(3,27){\normalfont\ttfamily\fontsize{8bp}{10bp}\selectfont\jobname\ \
      \today\ \ \printtime\ \ Page \thepage\ \ Sheet \thesheetsequence}
  \end{picture}}}

\checkandfixthelayout