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 A061926 #7 Mar 14 2023 18:30:06 %S A061926 0,1,0,0,1,0,1,1,1,0,0,2,2,1,0,1,2,3,3,1,0,0,3,4,6,4,1,0,1,3,5,10,9,5, %T A061926 1,0,0,4,6,15,16,14,6,1,0,1,4,7,21,25,30,19,7,1,0,0,5,8,28,36,55,44, %U A061926 26,8,1,0,1,5,9,36,49,91,85,70,33,9,1,0,0,6,10,45,64,140,146,155,96,42,10 %N A061926 Square table by antidiagonals where odd rows are partial sums of previous row, even rows are sums of pairs of values in previous row and initial row is 0 and 1 alternating. %F A061926 T(0, 2*k) = 0, T(0, 2*k+1) = 1, T(n, 0) = 0, T(2*n, k) = T(2*n-1, k-1) + T(2*n-1, k), T(2*n+1, k) = T(2*n+1, k-1) + T(2*n, k). - _Sean A. Irvine_, Mar 14 2023 %e A061926 From _Sean A. Irvine_, Mar 14 2023: (Start) %e A061926 Table begins: %e A061926 0 1 0 1 0 1 0 1 %e A061926 0 1 1 2 2 3 3 4 %e A061926 0 1 2 3 4 5 6 7 %e A061926 0 1 3 6 10 15 21 28 %e A061926 0 1 4 9 16 25 36 49 %e A061926 0 1 5 14 30 55 91 140 %e A061926 0 1 6 19 44 85 146 231 %e A061926 0 1 7 26 70 155 301 532 %e A061926 (End) %Y A061926 Rows are A000035, A004526, A001477, A000217, A000290, A000330, A005900, A006325, A014820, A061927. Columns are A000004, A000012, A001477, A061925. %K A061926 nonn,tabl %O A061926 0,12 %A A061926 _Henry Bottomley_, May 17 2001