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 A277592 #9 Nov 08 2016 07:42:54
%S A277592 5,15,25,35,45,50,55,65,75,85,95,105,115,125,135,145,150,155,165,175,
%T A277592 185,195,205,215,225,235,245,250,255,265,275,285,295,305,315,325,335,
%U A277592 345,350,355,365,375,385,395,405,415,425,435,445,450,455,465,475,485
%N A277592 Numbers k such that k/10^m == 5 mod 10, where 10^m is the greatest power of 10 that divides n.
%C A277592 Positions of 5 in A065881.
%C A277592 Numbers having 5 as rightmost nonzero digit in base 10. This is one sequence in a 10-way splitting of the positive integers; the other nine are indicated in the Mathematica program.
%C A277592 This sequence differs from A121025, which includes 540.
%t A277592 z = 460; a[b_] := Table[Mod[n/b^IntegerExponent[n, b], b], {n, 1, z}]
%t A277592 p[b_, d_] := Flatten[Position[a[b], d]]
%t A277592 p[10, 1] (* A277588 *)
%t A277592 p[10, 2] (* A277589 *)
%t A277592 p[10, 3] (* A277590 *)
%t A277592 p[10, 4] (* A277591 *)
%t A277592 p[10, 5] (* A277592 *)
%t A277592 p[10, 6] (* A277593 *)
%t A277592 p[10, 7] (* A277594 *)
%t A277592 p[10, 8] (* A277595 *)
%t A277592 p[10, 9] (* A277596 *)
%Y A277592 Cf. A277588-A277591, A277593-A277596.
%K A277592 nonn,easy,base
%O A277592 1,1
%A A277592 _Clark Kimberling_, Nov 05 2016