A128232 - cp's OEIS frontend

A128232 Expansion of exp(x)/(1 - x^4/4!), where a(n) = 1 + C(n,4)*a(n-4).

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	6
6	16
7	36
8	141
9	757
10	3361
11	11881
12	69796
13	541256
14	3364362
15	16217566
16	127028721
17	1288189281
18	10294947721
19	62859285817
20	615454153246
21	7709812846786
22	75307542579116
23	556618975909536
24	6539815832391997

[1, 1, 1, 1, 2, 6, 16, 36, 141, 757, 3361, 11881, 69796, 541256, 3364362, 16217566, 127028721, 1288189281, 10294947721, 62859285817, 615454153246, 7709812846786, 75307542579116, 556618975909536, 6539815832391997]

cp's OEIS Frontend

A128232 Expansion of exp(x)/(1 - x^4/4!), where a(n) = 1 + C(n,4)*a(n-4).

Table of values

List of values