A305405 - cp's OEIS frontend

A305405 Expansion of Sum_{k>=0} k!!x^k/Product_{j=1..k} (1 - jx).

n	a(n)
0	1
1	1
2	3
3	10
4	41
5	201
6	1126
7	7043
8	48603
9	366298
10	2987189
11	26163501
12	244654150
13	2430411335
14	25539609327
15	282834656434
16	3290175964577
17	40089424302657
18	510340938343270
19	6772086558823547
20	93481666812344979
21	1339885322519303434
22	19907413622297965373
23	306126204811557339045

[1, 1, 3, 10, 41, 201, 1126, 7043, 48603, 366298, 2987189, 26163501, 244654150, 2430411335, 25539609327, 282834656434, 3290175964577, 40089424302657, 510340938343270, 6772086558823547, 93481666812344979, 1339885322519303434, 19907413622297965373, 306126204811557339045]

cp's OEIS Frontend

A305405 Expansion of Sum_{k>=0} k!!x^k/Product_{j=1..k} (1 - jx).

Table of values

List of values

cp's OEIS Frontend

A305405 Expansion of Sum_{k>=0} k!!*x^k/Product_{j=1..k} (1 - j*x).

Table of values

List of values

A305405 Expansion of Sum_{k>=0} k!!x^k/Product_{j=1..k} (1 - jx).