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A025089 a(n) = s(1)s(n) + s(2)s(n-1) + ... + s(k)s(n-k+1), where k = [ n/2 ], s = (Lucas numbers). 0
3, 4, 19, 32, 79, 127, 283, 459, 940, 1520, 2982, 4826, 9171, 14838, 27581, 44628, 81557, 131961, 237995, 385085, 687158, 1111844, 1966764, 3182292, 5588259, 9041992 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..26.

CROSSREFS

Sequence in context: A212113 A196133 A330436 * A041989 A196198 A041561

Adjacent sequences: A025086 A025087 A025088 * A025090 A025091 A025092

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified December 6 10:22 EST 2022. Contains 358630 sequences. (Running on oeis4.)