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 A157901 Triangle read by rows: A000012 * A157898 1

%I

%S 1,1,1,2,2,2,2,4,4,4,3,6,10,8,8,3,9,16,24,16,16,4,12,28,40,56,32,32,4,

%T 16,40,80,96,128,64,64,5,20,60,120,216,224,288,128,128,5,25,80,200,

%U 336,560,512,640,256,256

%N Triangle read by rows: A000012 * A157898

%C Multiplication of the lower triangular matrix A157898 from the left by A000012 means: these are partial column sums of A157898.

%F Row sums = A105635(n+1).

%F T(n,k) = sum_{l=0..n} A000012(n,l)*A157898(l,k).

%e First few rows of the triangle, n>=0:

%e 1;

%e 1, 1;

%e 2, 2, 2;

%e 2, 4, 4, 4;

%e 3, 6, 10, 8, 8;

%e 3, 9, 16, 24, 16, 16;

%e 4, 12, 28, 40, 56, 32, 32;

%e 4, 16, 40, 80, 96, 128, 64, 64;

%e 5, 20, 60, 120, 216, 224, 288, 128, 128;

%e 5, 25, 80, 200, 336, 560, 512, 640, 256, 256;

%K nonn,tabl

%O 0,4

%A _Gary W. Adamson_ & _Roger L. Bagula_, Mar 08 2009

%E Edited by the Associate Editors of the OEIS, Apr 10 2009

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Last modified April 18 16:51 EDT 2021. Contains 343089 sequences. (Running on oeis4.)