A375105 - cp's OEIS frontend

A375105 a(n) = (2n)^(n-2)(2*n)!/n!.

n	a(n)
1	1
2	12
3	720
4	107520
5	30240000
6	13795246080
7	9302892318720
8	8706006083174400
9	10801536141415219200
10	17163329863680000000000
11	33994996578425904640819200
12	82126085558902590463908249600
13	237708952408715572102802964480000
14	812136157489332816782291600670720000

[1, 12, 720, 107520, 30240000, 13795246080, 9302892318720, 8706006083174400, 10801536141415219200, 17163329863680000000000, 33994996578425904640819200, 82126085558902590463908249600, 237708952408715572102802964480000, 812136157489332816782291600670720000]

cp's OEIS Frontend

A375105 a(n) = (2n)^(n-2)(2*n)!/n!.

Table of values

List of values

cp's OEIS Frontend

A375105 a(n) = (2*n)^(n-2)*(2*n)!/n!.

Table of values

List of values

A375105 a(n) = (2n)^(n-2)(2*n)!/n!.