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 A126258 #12 Sep 19 2024 04:17:08
%S A126258 1,0,1,2,1,1,0,3,2,1,3,3,5,3,1,0,6,8,8,4,1,4,6,14,16,12,5,1,0,10,20,
%T A126258 30,28,17,6,1,5,10,30,50,58,45,23,7,1,0,15,40,80,108,103,68,30,8,1,6,
%U A126258 15,55,120,188,211,171,98,38,9,1,0,21,70,175,308,399,382,269,136,47,10,1
%N A126258 Triangle generated by Pascal's rule with left diagonal = [1,0,2,0,3,0,4,...] (A000027 with interpolated zeros) and right diagonal = [1,1,1,1,1,...].
%F A126258 T(2*n,n) = A116914(n).
%F A126258 Sum_{k=0..n} T(n,k) = A034299(n).
%e A126258 Triangle begins:
%e A126258 1;
%e A126258 0, 1;
%e A126258 2, 1, 1;
%e A126258 0, 3, 2, 1;
%e A126258 3, 3, 5, 3, 1;
%e A126258 0, 6, 8, 8, 4, 1;
%e A126258 4, 6, 14, 16, 12, 5, 1;
%e A126258 0, 10, 20, 30, 28, 17, 6, 1;
%Y A126258 Cf. A034299, A116914.
%K A126258 nonn,tabl,easy
%O A126258 0,4
%A A126258 _Philippe Deléham_, Mar 08 2007
%E A126258 More terms from _Jason Yuen_, Sep 19 2024