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 A155067 #6 Nov 07 2021 00:23:13 %S A155067 3,6,6,6,8,10,6,12,8,6,10,14,6,6,18,10,12,8,10,12,12,6,14,16,6,8,16, %T A155067 12,8,6,24,6,18,16,6,14,12,10,12,18,12,8,10,12,6,20,12,10,14,24,16,8, %U A155067 16,12,8,10,14,12,10,8,16,14,18,18,12,12,10,12,24,14,12,6,24,6,18,6,24,12,18,10 %N A155067 First differences of A031368. %C A155067 All but the first term are even. %F A155067 a(n)= A031368(n+1)-A031368(n). %F A155067 a(n)= A001223(2n-1)+A001223(2n). - _R. J. Mathar_, Feb 27 2009 %F A155067 a(n)= A031131(2n-1). - _R. J. Mathar_, Feb 27 2009 %Y A155067 Cf. A001223, A031131, A031368, A110854. %K A155067 nonn,easy %O A155067 1,1 %A A155067 _Paul Curtz_, Jan 19 2009 %E A155067 Edited and extended by _R. J. Mathar_, Feb 27 2009