A210280 (7n)!/7^n.

1, 720, 1779148800, 148953184174080000, 126983900296423931904000000, 614812159599342234168301977600000000, 11942354952042770431904585727413846016000000000

Offset

0,2

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..60

Formula

E.g.f.: 1/(1-x^7/7).

Mathematica

Table[(7 n)!/7^n, {n, 0, 10}] (* Vincenzo Librandi, Feb 15 2013 *)

Prog

(Magma)[Factorial(7*n)/7^n: n in [0..10]]; // Vincenzo Librandi, Feb 15 2013

Crossrefs

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

Sequence in context: A258927 A195390 A261427 * A003926 A172621 A367570

Adjacent sequences: A210277 A210278 A210279 * A210281 A210282 A210283

Keyword

nonn,easy

Author

Mohammad K. Azarian, Apr 12 2012

Status

approved