This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A244781 #6 Nov 16 2016 12:37:14 %S A244781 2,2,4,8,12,24,36,72,144,252,504,864,1728,2952,5904,11808,21888,43776, %T A244781 79920,159840,290160,580320,1051200,2102400,4204800,8010000,16020000, %U A244781 30189600,60379200,113252400,226504800,423828000,847656000,1584075600 %N A244781 Number of length n 0..1 arrays with each partial sum starting from the beginning no more than one standard deviation from its mean. %C A244781 Column 1 of A244788 %H A244781 R. H. Hardin, <a href="/A244781/b244781.txt">Table of n, a(n) for n = 1..210</a> %e A244781 Some solutions for n=10 %e A244781 ..1....0....1....1....1....1....0....1....1....0....1....0....1....0....1....0 %e A244781 ..0....1....0....0....0....0....1....0....0....1....0....1....0....1....0....1 %e A244781 ..1....0....0....0....0....1....0....1....0....1....0....1....0....1....0....0 %e A244781 ..0....1....1....1....1....0....1....1....1....0....1....1....1....0....1....1 %e A244781 ..0....0....0....0....1....0....0....0....1....1....1....0....0....0....1....0 %e A244781 ..1....1....1....1....1....1....0....1....0....1....0....1....0....1....0....1 %e A244781 ..0....0....0....1....0....1....1....0....0....0....1....0....1....1....0....0 %e A244781 ..1....0....0....0....0....0....1....1....1....1....0....0....0....1....1....1 %e A244781 ..0....1....1....1....0....1....0....1....1....0....1....0....1....0....0....1 %e A244781 ..0....1....0....1....0....0....0....0....0....0....0....0....1....1....0....0 %K A244781 nonn %O A244781 1,1 %A A244781 _R. H. Hardin_, Jul 06 2014