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Triangle read by rows, A130540 * A000012, 1<=k<=n.
1

%I #2 Mar 30 2012 17:25:31

%S 1,4,1,5,1,1,11,4,1,1,7,1,1,1,1,20,8,4,1,1,19,1,1,1,1,1,1,26,11,4,4,1,

%T 1,1,1,18,5,5,1,1,1,1,1,1,28,10,4,4,4,1,1,1,1,1,13,1,1,1,1,1,1,1,1,1,

%U 1,55,27,15,8,4,4,1,1,1,1,1,1,15,1,1,1,1,1,1,1,1,1,1,1,1

%N Triangle read by rows, A130540 * A000012, 1<=k<=n.

%C Left border = A007429: (1, 4, 5, 11, 7, 20, 9,...).

%C Row sums = A060640: (1, 5, 7, 17, 11, 35,...).

%F Triangle read by rows, A130540 * A000012, 1<=k<=n. Equals partial row sums of A130540 starting from the right.

%e First few rows of the triangle =

%e 1;

%e 4, 1;

%e 5, 1, 1;

%e 11, 4, 1, 1;

%e 7, 1, 1, 1, 1;

%e 20, 8, 4, 1, 1, 1;

%e 9, 1, 1, 1, 1, 1, 1;

%e ...

%e Row 4 = (11, 4, 1, 1) since row 4 of A130540 = (7, 3, 0, 1).

%Y Cf. A130540, A007429, A060640.

%K nonn,tabl

%O 1,2

%A _Gary W. Adamson_, Aug 06 2008