A024479 a(n) = s(1)s(n) + s(2)s(n-1) + ... + s(k)s(n+1-k), where k = [ (n+1)/2 ], s = (1, p(1), p(2), ...).

1, 2, 7, 11, 26, 40, 81, 111, 196, 254, 429, 515, 790, 944, 1383, 1599, 2210, 2548, 3413, 3851, 5084, 5588, 7131, 7841, 9862, 10672, 13177, 14179, 17130, 18448, 21989, 23541, 27846, 29574, 34709, 36649, 42486, 44888, 51723, 54365, 62128, 65230, 73881, 77593

Offset

1,2

Links

Table of n, a(n) for n=1..44.

Crossrefs

Cf. A008578.

Sequence in context: A093039 A201630 A023862 * A295138 A023864 A024857

Adjacent sequences: A024476 A024477 A024478 * A024480 A024481 A024482

Keyword

nonn

Author

Clark Kimberling

Status

approved