A024866 a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (natural numbers), t = A014306.

1, 1, 2, 1, 3, 6, 10, 10, 14, 13, 18, 17, 23, 22, 29, 28, 36, 45, 54, 53, 63, 62, 73, 72, 84, 83, 96, 95, 109, 108, 123, 122, 138, 136, 152, 150, 167, 185, 204, 203, 223, 222, 243, 242, 264, 263, 286, 285, 309, 308, 333, 332, 358, 357, 383, 381, 408, 406, 434, 432, 461, 459, 489

Offset

2,3

Links

Table of n, a(n) for n=2..64.

Crossrefs

Sequence in context: A076242 A066203 A329101 * A076058 A098124 A020992

Adjacent sequences: A024863 A024864 A024865 * A024867 A024868 A024869

Keyword

nonn

Author

Clark Kimberling

Status

approved