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A058581 (4*n^2+2*n-3)*(2*n-1)*n/3. 0
0, 1, 34, 195, 644, 1605, 3366, 6279, 10760, 17289, 26410, 38731, 54924, 75725, 101934, 134415, 174096, 221969, 279090, 346579, 425620, 517461, 623414, 744855, 883224, 1040025, 1216826, 1415259, 1637020, 1883869, 2157630 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

Conjecture: satisfies a linear recurrence having signature (5, -10, 10, -5, 1). - Harvey P. Dale, Sep 18 2019

LINKS

Table of n, a(n) for n=0..30.

MATHEMATICA

Table[(4n^2+2n-3)(2n-1)n/3, {n, 0, 40}] (* Harvey P. Dale, Sep 18 2019 *)

CROSSREFS

Sequence in context: A074709 A074900 A302227 * A050263 A020869 A055716

Adjacent sequences:  A058578 A058579 A058580 * A058582 A058583 A058584

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Dec 26 2000

STATUS

approved

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Last modified July 9 18:08 EDT 2020. Contains 335545 sequences. (Running on oeis4.)