A093448 Rows sums of the triangle A093447.

1, 5, 32, 316, 4661, 94217, 2458810, 80128082, 3193424921, 153067911301, 8685693546692, 574691476630760, 43735137898763917, 3784250198022172001, 368841694500041857646, 40194470526005627873182

Offset: 1

Author

Amarnath Murthy, Apr 02 2004

Keywords

• nonn

Examples

			The row for n = 4 is
(1*2*3*4), (5*6*7), (8*9), 10 or
24 210 72 10.
hence a(4) = 24 +210 +72 +10 = 316.
		

Crossrefs

Cf. A093445, A093446, A093447.

Programs

Maple

A000217 := proc(n) n*(n+1)/2 ; end: A093447 := proc(n,k) factorial(k*n-A000217(k-1))/factorial((k-1)*n-A000217(k-2)) ; end: A093448 := proc(n) add( A093447(n,k),k=1..n) ; end: for n from 1 to 26 do printf("%d, ",A093448(n)) ; od: # R. J. Mathar, Jul 27 2007

Extensions

More terms from R. J. Mathar, Jul 27 2007