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 A277599 #4 Dec 03 2016 11:51:44 %S A277599 1,3,5,7,9,10,11,13,15,17,19,21,23,25,27,29,30,31,33,35,37,39,41,43, %T A277599 45,47,49,50,51,53,55,57,59,61,63,65,67,69,70,71,73,75,77,79,81,83,85, %U A277599 87,89,90,91,93,95,97,99,100,101,103,105,107,109,110,111,113 %N A277599 (1/5)*A277592. %H A277599 Clark Kimberling, <a href="/A277599/b277599.txt">Table of n, a(n) for n = 1..10000</a> %t A277599 z = 260; a[b_] := Table[Mod[n/b^IntegerExponent[n, b], b], {n, 1, z}] %t A277599 p[b_, d_] := Flatten[Position[a[b], d]] %t A277599 p[10, 2]/2 (* A277597 *) %t A277599 p[10,4]/3 (* A277598 *) %t A277599 p[10,5]/5 (* A277599 *) %t A277599 p[10,6]/2 (* A277600 *) %t A277599 p[10,8]/2 (* A277601 *) %Y A277599 Cf. A277592, A277597, A277598, A277600, A277601. %K A277599 nonn,easy %O A277599 1,2 %A A277599 _Clark Kimberling_, Nov 12 2016