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 A274210 #5 Jun 16 2016 21:47:17 %S A274210 7,7,0,0,3,5,9,6,5,7,1,2,9,2,9,1,9,8,7,9,2,2,1,4,1,6,6,1,9,6,7,9,8,9, %T A274210 9,3,7,0,3,2,9,4,1,7,2,3,4,0,9,3,7,2,9,6,4,2,9,4,7,0,5,2,2,0,0,8,0,8, %U A274210 6,3,5,9,3,8,2,6,4,6,7,0,9,4,0,8,9,0 %N A274210 Decimal expansion of the reciprocal of the constant in A274195. %e A274210 Limiting ratio = 0.770035965712929198792214166196... %t A274210 z = 1600; g[n_, 0] = g[n, 0] = 1; %t A274210 g[n_, k_] := g[n, k] = If[k > n, 0, g[n - 1, k - 1] + g[n - 1, 3 k]]; %t A274210 t = Table[g[n, k], {n, 0, z}, {k, 0, n}]; %t A274210 w = Map[Total, t]; (*A274194*) %t A274210 u = N[w[[z]]/w[[z + 1]], 100] %t A274210 RealDigits[u][[1]] (*A274210*) %Y A274210 Cf. A274195, A274194, A274195, A274209, A274211. %K A274210 nonn,cons,easy %O A274210 0,1 %A A274210 _Clark Kimberling_, Jun 16 2016