gistfile1.txt

iex(foo@ip-10-40-65-192)78> is_list(res)
true
iex(foo@ip-10-40-65-192)79> b = list_to_binary(res)
** (ArgumentError) argument error
    :erlang.list_to_binary([4,16,36,64,100,144,196,256,324,400,484,576,676,784,900,1024,1156,1296,1444,1600,1764,1936,2116,2304,2500,2704,2916,3136,3364,3600,3844,4096,4356,4624,4900,5184,5476,5776,6084,6400,6724,7056,7396,7744,8100,8464,8836,9216,9604,10000,10404,10816,11236,11664,12100,12544,12996,13456,13924,14400,14884,15376,15876,16384,16900,17424,17956,18496,19044,19600,20164,20736,21316,21904,22500,23104,23716,24336,24964,25600,26244,26896,27556,28224,28900,29584,30276,30976,31684,32400,33124,33856,34596,35344,36100,36864,37636,38416,39204,40000])
    erl_eval.erl:569: :erl_eval.do_apply/6
    erl_eval.erl:364: :erl_eval.expr/5
    src/elixir.erl:143: :elixir.eval_forms/3
    /Volumes/Work/github/elixir/lib/iex/lib/iex/server.ex:81: IEx.Server.eval/4
    /Volumes/Work/github/elixir/lib/iex/lib/iex/server.ex:37: IEx.Server.do_loop/1