A126804 - cp's OEIS frontend

A126804 a(n) = (2n)! / (n-1)!.

n	a(n)
1	2
2	24
3	360
4	6720
5	151200
6	3991680
7	121080960
8	4151347200
9	158789030400
10	6704425728000
11	309744468633600
12	15543540607795200
13	841941782922240000
14	48962152914554880000
15	3042648073975910400000
16	201220459292273541120000
17	14110584707870682071040000

[2, 24, 360, 6720, 151200, 3991680, 121080960, 4151347200, 158789030400, 6704425728000, 309744468633600, 15543540607795200, 841941782922240000, 48962152914554880000, 3042648073975910400000, 201220459292273541120000, 14110584707870682071040000]

cp's OEIS Frontend

A126804 a(n) = (2n)! / (n-1)!.

Table of values

List of values