A295553 - cp's OEIS frontend

A295553 Expansion of 1/(1 - Sum_{k>=1} (2k-1)!!x^k).

n	a(n)
0	1
1	1
2	4
3	22
4	154
5	1330
6	13882
7	171802
8	2474098
9	40738594
10	755322778
11	15566915770
12	352862768434
13	8720662458754
14	233285616212506
15	6713983428179098
16	206813607458357746
17	6788092999359053410
18	236481982146071359258
19	8714521818620631672058
20	338660320676350494328882
21	13841377309645038610883266

[1, 1, 4, 22, 154, 1330, 13882, 171802, 2474098, 40738594, 755322778, 15566915770, 352862768434, 8720662458754, 233285616212506, 6713983428179098, 206813607458357746, 6788092999359053410, 236481982146071359258, 8714521818620631672058, 338660320676350494328882, 13841377309645038610883266]

cp's OEIS Frontend

A295553 Expansion of 1/(1 - Sum_{k>=1} (2k-1)!!x^k).

Table of values

List of values

cp's OEIS Frontend

A295553 Expansion of 1/(1 - Sum_{k>=1} (2*k-1)!!*x^k).

Table of values

List of values

A295553 Expansion of 1/(1 - Sum_{k>=1} (2k-1)!!x^k).