A387083 - cp's OEIS frontend

A387083 Expansion of e.g.f. (2(1-x)^2)/(2-4x+x^2).

n	a(n)
0	1
1	0
2	1
3	6
4	42
5	360
6	3690
7	44100
8	602280
9	9253440
10	157966200
11	2966317200
12	60765843600
13	1348539192000
14	32229405608400
15	825285553092000
16	22541609025936000
17	654175871661312000
18	20101465198839024000
19	651991603501798560000
20	22260385752292527840000

[1, 0, 1, 6, 42, 360, 3690, 44100, 602280, 9253440, 157966200, 2966317200, 60765843600, 1348539192000, 32229405608400, 825285553092000, 22541609025936000, 654175871661312000, 20101465198839024000, 651991603501798560000, 22260385752292527840000]

cp's OEIS Frontend

A387083 Expansion of e.g.f. (2(1-x)^2)/(2-4x+x^2).

Table of values

List of values

cp's OEIS Frontend

A387083 Expansion of e.g.f. (2*(1-x)^2)/(2-4*x+x^2).

Table of values

List of values

A387083 Expansion of e.g.f. (2(1-x)^2)/(2-4x+x^2).