A210281 (8n)!/8^n.

1, 5040, 326918592000, 1211813284635233280000, 64240926985765022013480960000000, 24899758399899222849902687670779904000000000, 47355329866546908076714664639943599847875543040000000000

Offset

0,2

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..50

Formula

E.g.f.: 1/(1-x^8/8).

Mathematica

Table[(8 n)!/8^n, {n, 0, 10}] (* Vincenzo Librandi, Feb 15 2013 *)

Prog

(Magma)[Factorial(8*n)/8^n: n in [0..10]]; // Vincenzo Librandi, Feb 15 2013

Crossrefs

Cf. A210280, A210279, A210278, A210277, A000680, A067630, A084939, A084940, A084941, A084942, A084943, A084944, A087127, A001147, A132101

Sequence in context: A208193 A259112 A195391 * A172618 A367571 A072242

Adjacent sequences: A210278 A210279 A210280 * A210282 A210283 A210284

Keyword

nonn,easy

Author

Mohammad K. Azarian, Apr 12 2012

Status

approved