A038793 T(n,n-3), array T as in A038792.

1, 4, 8, 13, 21, 33, 50, 73, 103, 141, 188, 245, 313, 393, 486, 593, 715, 853, 1008, 1181, 1373, 1585, 1818, 2073, 2351, 2653, 2980, 3333, 3713, 4121, 4558, 5025, 5523, 6053, 6616, 7213, 7845, 8513, 9218, 9961, 10743, 11565, 12428

Offset

3,2

Links

Table of n, a(n) for n=3..45.

Formula

For n > 4, a(n) = (n^3-9*n^2+38*n-42)/6.

a(n) = sum(A007318(n-k, k), k=0..3), n > 4. - Johannes W. Meijer, Aug 11 2013

Crossrefs

Sequence in context: A060403 A139097 A160395 * A036709 A052115 A007882

Adjacent sequences: A038790 A038791 A038792 * A038794 A038795 A038796

Keyword

nonn

Author

Clark Kimberling, May 02 2000

Status

approved