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 A291970 #16 Sep 07 2017 06:14:20 %S A291970 1,0,2,0,2,0,2,4,0,2,4,0,2,8,0,2,8,8,0,2,12,8,0,2,12,16,0,2,16,24,0,2, %T A291970 16,32,16,0,2,20,40,16,0,2,20,56,32,0,2,24,64,48,0,2,24,80,80,0,2,28, %U A291970 96,96,32,0,2,28,112,144,32,0,2,32,128,176,64,0,2,32 %N A291970 Triangle read by rows: T(n,k) = 2 * T(n-k,k-1) + T(n-k,k) with T(0,0) = 1 for 0 <= k <= A003056(n). %H A291970 Seiichi Manyama, <a href="/A291970/b291970.txt">Rows n = 0..481, flattened</a> %e A291970 First few rows are: %e A291970 1; %e A291970 0, 2; %e A291970 0, 2; %e A291970 0, 2, 4; %e A291970 0, 2, 4; %e A291970 0, 2, 8; %e A291970 0, 2, 8, 8; %e A291970 0, 2, 12, 8; %e A291970 0, 2, 12, 16; %e A291970 0, 2, 16, 24; %e A291970 0, 2, 16, 32, 16. %Y A291970 Row sums give A032302. %Y A291970 Columns 0-1 give A000007, A007395. %Y A291970 Cf. A008289 (m=1), this sequence (m=2), A291971 (m=3). %K A291970 nonn,tabf,look %O A291970 0,3 %A A291970 _Seiichi Manyama_, Sep 07 2017