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 A111622 #4 Mar 30 2012 18:36:50
%S A111622 1,3,5,7,11,15,17,19,21,23,27,31,33,35,39,43,53,57,59,61,63,67,79,95,
%T A111622 97,101,115,127,129,131,135,137,139,143
%N A111622 Where A111621(n)=2.
%t A111622 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, 144}]]; g[n_, m_] := f[n][[m]]; t = Table[ n/g[n, n - 1], {n, 2, 144}]; Select[ Range[143], t[[ # ]] == 2 &]
%Y A111622 Cf. A109626, A111618.
%K A111622 nonn
%O A111622 1,2
%A A111622 _Paul D. Hanna_ and _Robert G. Wilson v_, Aug 01 2005