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 A131856 #6 Dec 28 2019 07:46:28 %S A131856 2,7,22,32,37,42,47,52,62,67,82,87,97,107,112,117,122,127,162,167,182, %T A131856 227,242,247,262,292,302,322,327,342,352,357,362,367,372,382,422,482, %U A131856 487,502,512,517,522,527,532,542,552,557,572,577,587,592,597,602,607 %N A131856 Numbers m such that z(m)=(0,1) with z as defined in A131851. %C A131856 Intersection of A131854 and A131857: A131851(a(n))=0, A131852(a(n))=1. %H A131856 Seiichi Manyama, <a href="/A131856/b131856.txt">Table of n, a(n) for n = 1..10000</a> %Y A131856 Cf. A131851, A131853, A131858, A131860. %K A131856 nonn %O A131856 1,1 %A A131856 _Reinhard Zumkeller_, Jul 22 2007