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 A244361 #18 May 04 2023 09:52:24 %S A244361 1,2,3,4,4,6,5,8,8,10,7,12,8,13,13,16,10,18,11,20,18,19,13,24,17,22, %T A244361 22,28,16,30,17,32 %N A244361 Number of toothpicks added at n-th stage in the toothpick structure of the symmetric representation of half sigma in the first octant (without the axis x and without the main diagonal). %C A244361 Partial sums give A244360. - _Omar E. Pol_, Oct 18 2014 %F A244361 a(n) = A244363(n)/2. %F A244361 a(n) = A244371(n)/8. - _Omar E. Pol_, Oct 18 2014 %Y A244361 Cf. A000203, A237270, A237271, A237591, A237593, A244360, A244362, A244363, A244370, A244371, A279228. %K A244361 nonn,more %O A244361 1,2 %A A244361 _Omar E. Pol_, Jun 26 2014 %E A244361 a(13)-a(28) from _Omar E. Pol_, Oct 18 2014 %E A244361 a(29)-a(32) from _Omar E. Pol_, May 04 2023