A080951 - cp's OEIS frontend

A080951 Sequence associated with recurrence a(n) = 2a(n-1) + k(k+2)*a(n-2).

n	a(n)
0	1
1	5
2	30
3	140
4	560
5	2016
6	6720
7	21120
8	63360
9	183040
10	512512
11	1397760
12	3727360
13	9748480
14	25067520
15	63504384
16	158760960
17	392232960
18	958791680
19	2321285120
20	5571084288
21	13264486400
22	31352422400
23	73610035200
24	171756748800

[1, 5, 30, 140, 560, 2016, 6720, 21120, 63360, 183040, 512512, 1397760, 3727360, 9748480, 25067520, 63504384, 158760960, 392232960, 958791680, 2321285120, 5571084288, 13264486400, 31352422400, 73610035200, 171756748800]

cp's OEIS Frontend

A080951 Sequence associated with recurrence a(n) = 2a(n-1) + k(k+2)*a(n-2).

Table of values

List of values

cp's OEIS Frontend

A080951 Sequence associated with recurrence a(n) = 2*a(n-1) + k*(k+2)*a(n-2).

Table of values

List of values

A080951 Sequence associated with recurrence a(n) = 2a(n-1) + k(k+2)*a(n-2).