A007804 Related to the asymptotic expansion of Sum_{k = 0..n} C(n,k)^4.

1, 30, 1730, 152340, 18177750, 2742927876, 500848449300, 107365679361000, 26431620161451750, 7348772237141884500, 2277376143931016207100, 778374526612873263759000, 290867891728117751744917500

Offset

0,2

Links

Table of n, a(n) for n=0..12.

Crossrefs

Cf. A005260.

Sequence in context: A280360 A222719 A089550 * A295588 A108298 A202384

Adjacent sequences: A007801 A007802 A007803 * A007805 A007806 A007807

Keyword

nonn

Author

Bruno Haible

Status

approved