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A024855 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 = A023531. 0
1, 0, 0, 1, 2, 3, 4, 1, 2, 3, 4, 5, 7, 9, 11, 4, 5, 6, 8, 10, 12, 14, 16, 18, 20, 9, 11, 13, 15, 17, 19, 21, 23, 26, 29, 32, 35, 18, 20, 22, 24, 26, 29, 32, 35, 38, 41, 44, 47, 50, 53, 29, 32, 35, 38, 41, 44, 47, 50, 53, 56, 59, 62, 66, 70, 74, 78, 47, 50, 53, 56, 59, 62, 65, 68, 72, 76, 80 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,5

LINKS

Table of n, a(n) for n=2..79.

CROSSREFS

Sequence in context: A053824 A033925 A064866 * A274651 A074057 A299756

Adjacent sequences:  A024852 A024853 A024854 * A024856 A024857 A024858

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified December 13 23:26 EST 2018. Contains 318087 sequences. (Running on oeis4.)