So Easy Pattern (really?)

gistfile1.txt

n=1
x

n=2
 x
x x
 x

n=3
  x 
   x 
x o x 
 x   
  x

n=4
   x
    x
   o x
x o o x
 x o
   x
    x

n=5
    x 
     x 
    o x
     o x
x o x o x
 x o
  x o
   x  
    x

n=6
     x
      x
     o x
      o x
     x o x
x o x x o x
 x o x
  x o
   x o
    x
     x

n=7
      x
       x
      o x
       o x
      x o x
       x o x
x o x o x o x
 x o x
  x o x
   x o 
    x o
     x
      x

n=8
       x
        x
       o x
        o x
       x o x
        x o x
       o x o x
x o x o o x o x
 x o x o
  x o x
   x o x
    x o
     x o
      x
       x

n=9
        x
         x
        o x
         o x
        x o x
         x o x
        o x o x
         o x o x
x o x o x o x o x
 x o x o
  x o x o
   x o x
    x o x
     x o
      x o
       x
        x

n=10
         x
          x
         o x
          o x
         x o x
          x o x
         o x o x
          o x o x
         x o x o x
x o x o x x o x o x
 x o x o x
  x o x o
   x o x o
    x o x
     x o x
      x o
       x o
        x
         x

easy pattern, not easy code.

https://gist.github.com/LIQRGV/b70a547e5078cf0a9ff6cad3b80c44b4