A138782 - cp's OEIS frontend

A138782 a(n) = n(3n-1)*n!/2.

n	a(n)
1	1
2	10
3	72
4	528
5	4200
6	36720
7	352800
8	3709440
9	42456960
10	526176000
11	7025356800
12	100590336000
13	1538074137600
14	25020169574400
15	431532541440000
16	7866968997888000
17	151167156940800000
18	3053932257632256000

[1, 10, 72, 528, 4200, 36720, 352800, 3709440, 42456960, 526176000, 7025356800, 100590336000, 1538074137600, 25020169574400, 431532541440000, 7866968997888000, 151167156940800000, 3053932257632256000]

cp's OEIS Frontend

A138782 a(n) = n(3n-1)*n!/2.

Table of values

List of values

cp's OEIS Frontend

A138782 a(n) = n*(3*n-1)*n!/2.

Table of values

List of values

A138782 a(n) = n(3n-1)*n!/2.