A142986 - cp's OEIS frontend

A142986 a(1) = 1, a(2) = 8, a(n+2) = 8a(n+1) + (n + 1)(n + 2)*a(n).

n	a(n)
1	1
2	8
3	70
4	656
5	6648
6	72864
7	862128
8	10977408
9	149892480
10	2187106560
11	33985025280
12	560578268160
13	9786290088960
14	180315565516800
15	3497645442816000
16	71256899266560000
17	1521414754578432000
18	33975929212194816000

[1, 8, 70, 656, 6648, 72864, 862128, 10977408, 149892480, 2187106560, 33985025280, 560578268160, 9786290088960, 180315565516800, 3497645442816000, 71256899266560000, 1521414754578432000, 33975929212194816000]

cp's OEIS Frontend

A142986 a(1) = 1, a(2) = 8, a(n+2) = 8a(n+1) + (n + 1)(n + 2)*a(n).

Table of values

List of values

cp's OEIS Frontend

A142986 a(1) = 1, a(2) = 8, a(n+2) = 8*a(n+1) + (n + 1)*(n + 2)*a(n).

Table of values

List of values

A142986 a(1) = 1, a(2) = 8, a(n+2) = 8a(n+1) + (n + 1)(n + 2)*a(n).