A025116 s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (odd natural numbers), t = A014306.

1, 1, 3, 1, 4, 9, 16, 16, 24, 22, 31, 29, 40, 38, 51, 49, 64, 81, 99, 97, 116, 114, 135, 133, 156, 154, 179, 177, 204, 202, 231, 229, 260, 257, 288, 284, 317, 352, 389, 387, 426, 424, 465, 463, 506, 504, 549, 547, 594, 592, 641, 639, 690, 688, 740, 736, 789, 785, 840, 836, 893

Offset

1,3

Links

Table of n, a(n) for n=1..61.

Crossrefs

Sequence in context: A108621 A193792 A190179 * A178300 A081720 A137405

Adjacent sequences: A025113 A025114 A025115 * A025117 A025118 A025119

Keyword

nonn

Author

Clark Kimberling

Status

approved