A295383 - cp's OEIS frontend

A295383 a(n) = (2n)! [x^(2n)] (-x/(1 - x))^n/((1 - x)n!).

n	a(n)
0	1
1	-4
2	72
3	-2400
4	117600
5	-7620480
6	614718720
7	-59364264960
8	6678479808000
9	-857813628672000
10	123868287980236800
11	-19863969090648883200
12	3502679882984419737600
13	-673592285189311488000000
14	140299650258002307072000000
15	-31464534897861317399347200000

[1, -4, 72, -2400, 117600, -7620480, 614718720, -59364264960, 6678479808000, -857813628672000, 123868287980236800, -19863969090648883200, 3502679882984419737600, -673592285189311488000000, 140299650258002307072000000, -31464534897861317399347200000]

cp's OEIS Frontend

A295383 a(n) = (2n)! [x^(2n)] (-x/(1 - x))^n/((1 - x)n!).

Table of values

List of values

cp's OEIS Frontend

A295383 a(n) = (2*n)! * [x^(2*n)] (-x/(1 - x))^n/((1 - x)*n!).

Table of values

List of values

A295383 a(n) = (2n)! [x^(2n)] (-x/(1 - x))^n/((1 - x)n!).