A370055 - cp's OEIS frontend

A370055 a(n) = 3(3n+2)!/(2*n+3)!.

n	a(n)
0	1
1	3
2	24
3	330
4	6552
5	171360
6	5581440
7	218045520
8	9945936000
9	519177859200
10	30535045632000
11	1998518736614400
12	144098325316915200
13	11350405033583616000
14	969837188805041356800
15	89351761457237190912000
16	8830056426362263572480000
17	931769828125956695715840000

[1, 3, 24, 330, 6552, 171360, 5581440, 218045520, 9945936000, 519177859200, 30535045632000, 1998518736614400, 144098325316915200, 11350405033583616000, 969837188805041356800, 89351761457237190912000, 8830056426362263572480000, 931769828125956695715840000]

cp's OEIS Frontend

A370055 a(n) = 3(3n+2)!/(2*n+3)!.

Table of values

List of values

cp's OEIS Frontend

A370055 a(n) = 3*(3*n+2)!/(2*n+3)!.

Table of values

List of values

A370055 a(n) = 3(3n+2)!/(2*n+3)!.