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Row sums of triangle A137639.
1

%I #3 Mar 30 2012 17:25:27

%S 1,3,4,8,9,17,19,32,40,57,71,106,129,176

%N Row sums of triangle A137639.

%F A026794 * A000005. (A026794 as an infinite lower triangular matrix and d(n) as a vector).

%e a(4) = 8 = sum of row 4 terms of triangle A137639: (7 + 2 + 0 + 1).

%e a(4) = 8 = (3, 1, 0, 1) dot (1, 2, 2, 3) = (3 + 2 + 0 + 3); where (3, 1, 0, 1) = row 4 of triangle A026794, the partition triangle and (1, 2, 2, 3) = the first 4 terms of A000005, d(n).

%Y Cf. A000005, A026794, A137639.

%K nonn

%O 1,2

%A _Gary W. Adamson_, Jan 31 2008