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 A093448 Rows sums of the triangle A093447. 2
 1, 5, 32, 316, 4661, 94217, 2458810, 80128082, 3193424921, 153067911301, 8685693546692, 574691476630760, 43735137898763917, 3784250198022172001, 368841694500041857646, 40194470526005627873182 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS EXAMPLE 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. 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 CROSSREFS Cf. A093445, A093446, A093447. Sequence in context: A294957 A023882 A109780 * A094653 A135250 A006926 Adjacent sequences:  A093445 A093446 A093447 * A093449 A093450 A093451 KEYWORD nonn AUTHOR Amarnath Murthy, Apr 02 2004 EXTENSIONS More terms from R. J. Mathar, Jul 27 2007 STATUS approved

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Last modified June 22 20:39 EDT 2021. Contains 345389 sequences. (Running on oeis4.)