A372252 - OEIS

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A372252

a(n) = A000045(n+1)*A000292(n) (product of a Fibonacci number and a tetrahedral number).

0, 1, 8, 30, 100, 280, 728, 1764, 4080, 9075, 19580, 41184, 84812, 171535, 341600, 671160, 1303152, 2503896, 4766340, 8997450, 16856840, 31366181, 58001768, 106646400, 195065000, 355074525, 643465368, 1161281394

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,3

LINKS

Table of n, a(n) for n=0..27.

FORMULA

G.f.: -x*((x^2+1)*(x^2-4*x-1))/(x^2+x-1)^4.

CROSSREFS

Cf. A000045, A000292.

Sequence in context: A343520 A107233 A098213 * A163613 A279217 A050477

Adjacent sequences: A372249 A372250 A372251 * A372253 A372254 A372255

KEYWORD

nonn

AUTHOR

Vladimir Kruchinin, Apr 24 2024

STATUS

approved