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 A158955 #5 Oct 13 2022 14:22:10 %S A158955 36,18,18,18,54,72,18,36,36,18,18,18,54,18,18,90,54,18,54,18,18,18, %T A158955 126,54,90,36,18,18,18,36,90,18,18,54,18,108,18,36,126,18,36,36,54,36, %U A158955 72,18,54,18,36,126,18,72,18,18,54,18,36,36,54,36,144,54,18,18,90,36,18,36,162,18 %N A158955 First differences of A061241. %C A158955 Six prime modulo classes are A061237, A061238, A061239, A061240, A061241 and A061242 %C A158955 with remainders 1, 2, 4, 5, 7, and 8 (mod 9). %t A158955 Differences[Select[Prime[Range[500]],Mod[#,9]==7&]] (* _Harvey P. Dale_, Oct 13 2022 *) %Y A158955 Cf. A158910. %K A158955 nonn,less %O A158955 1,1 %A A158955 _Paul Curtz_, Apr 01 2009 %E A158955 Edited and extended by _R. J. Mathar_, Apr 04 2009