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 A048729 #7 Jun 01 2025 22:36:05 %S A048729 0,0,0,0,0,8,0,8,0,0,16,16,0,8,16,24,0,0,0,0,32,40,32,40,0,0,16,16,32, %T A048729 40,48,56,0,0,0,0,0,8,0,8,64,64,80,80,64,72,80,88,0,0,0,0,32,40,32,40, %U A048729 64,64,80,80,96,104,112,120,0 %N A048729 Differences between A008587 (multiples of 5) and A048725. %F A048729 a(n) = ((n*5)-Xmult(n, 5)) %Y A048729 Positions of zeros are given by A048716. %Y A048729 Diagonal 5 of A061858. %K A048729 nonn %O A048729 0,6 %A A048729 Antti Karttunen, Apr 26 1999