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A135967 Row sums of triangle A135966. 1
1, 2, 3, 6, 13, 38, 141, 672, 4081, 31544, 310171, 3879588, 61725481, 1249215110, 32159093791, 1053086855394, 43865027507209, 2324162212695626, 156642025511922149, 13429008862711938180, 1464446313265909756141 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..20.

FORMULA

a(n) = Sum_{k=0..n} fibonacci(k(n-k) + 1).

PROG

(PARI) a(n)=sum(k=0, n, fibonacci(k*(n-k)+1))

CROSSREFS

Cf. A135966.

Sequence in context: A002877 A065845 A137273 * A290248 A146000 A134737

Adjacent sequences: A135964 A135965 A135966 * A135968 A135969 A135970

KEYWORD

nonn

AUTHOR

Paul D. Hanna, Dec 11 2007

STATUS

approved

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Last modified December 3 00:23 EST 2022. Contains 358510 sequences. (Running on oeis4.)