cp's OEIS Frontend

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.

A111612 Twelfth column of A109626.

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%I A111612 #4 Mar 30 2012 18:36:50
%S A111612 1,1,1,3,5,6,7,4,6,5,11,6,13,14,5,12,17,18,19,5,21,22,23,8,25,13,9,28,
%T A111612 29,10,31,8,33,17,35,21,37,38,26,20,41,21,43,22,45,46,47,44,49,25,34,
%U A111612 13,53,9,55,56,19,29,59,20,61,62,42,16,65,22,67,51,23,70,71,72,73,37,75,38
%N A111612 Twelfth column of A109626.
%t A111612 f[n_] := f[n] = Block[{a}, a[0] = 1; a[l_] := a[l] = Block[{k = 1, s = Sum[ a[i]*x^i, {i, 0, l - 1}]}, While[ IntegerQ[ Last[ CoefficientList[ Series[(s + k*x^l)^(1/n), {x, 0, l}], x]]] != True, k++ ]; k]; Table[a[j], {j, 0, 128}]]; g[n_, m_] := f[n][[m]]; Table[g[n, 12 + 1], {n, 76}]
%Y A111612 Cf. A109626.
%K A111612 nonn
%O A111612 1,4
%A A111612 _Paul D. Hanna_ and _Robert G. Wilson v_, Aug 01 2005