A341590 - cp's OEIS frontend

A341590 a(n) = (Sum_{j=1..3} StirlingS1(3,j)*(2^j-1)^n)/3!.

n	a(n)
0	0
1	0
2	4
3	44
4	360
5	2680
6	19244
7	136164
8	957520
9	6715760
10	47049684
11	329465884
12	2306615480
13	16147371240
14	113034787324
15	791253077204
16	5538800238240
17	38771687761120
18	271402072608164
19	1899815283098124
20	13298709306209800

[0, 0, 4, 44, 360, 2680, 19244, 136164, 957520, 6715760, 47049684, 329465884, 2306615480, 16147371240, 113034787324, 791253077204, 5538800238240, 38771687761120, 271402072608164, 1899815283098124, 13298709306209800]

cp's OEIS Frontend

A341590 a(n) = (Sum_{j=1..3} StirlingS1(3,j)*(2^j-1)^n)/3!.

Table of values

List of values