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 A134750 #5 Mar 31 2012 10:22:05
%S A134750 1,4,5,18,20,24,28,32,34,112,115,124,130,139,142,160,163,184,193,199,
%T A134750 205,220,226,232,241,262,265,283,286,295,301,310,313,975,979,995,1003,
%U A134750 1019,1023,1075,1079,1115,1127,1139,1147,1195,1203,1215,1227,1263,1267
%N A134750 Variant of permutational numbers with shifted digits 0->1->2->...->k+1 in k+1 positional system.
%C A134750 Variant of permutational numbers with shifted digits 0->1->2->...->k+1 in k+2 positional system see A051845
%t A134750 a = {}; b = {}; Do[AppendTo[b, n]; w = Permutations[b]; Do[j = FromDigits[1 + w[[m]], n + 1]; AppendTo[a, j], {m, 1, Length[w]}], {n, 0, 5}]; a (*Artur Jasinski*)
%Y A134750 Cf. A134640, A051845.
%K A134750 nonn,base
%O A134750 1,2
%A A134750 _Artur Jasinski_, Nov 08 2007