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 A244371 #19 May 04 2023 09:52:19 %S A244371 8,16,24,32,32,48,40,64,64,80,56,96,64,104,104,128,80,144,88,160,144, %T A244371 152,104,192,136,176,176,224,128,240,136,256 %N A244371 Number of toothpicks added at n-th stage in the toothpick structure of the symmetric representation of sigma in the four quadrants. %C A244371 Partial sums give A244370. %F A244371 a(n) = 4*A244363(n) = 8*A244361(n). - _Omar E. Pol_, Oct 16 2014 %Y A244371 Cf. A000203, A196020, A236104, A237270, A237271, A237591, A237593, A244360-A244363, A244370, A244371, A244970, A244971, A245092. %K A244371 nonn,more %O A244371 1,1 %A A244371 _Omar E. Pol_, Jun 26 2014 %E A244371 a(13)-a(28) from _Omar E. Pol_, Oct 18 2014 %E A244371 a(29)-a(32) from _Omar E. Pol_, May 04 2023