A205802 - cp's OEIS frontend

A205802 Expansion of e.g.f. 1/( Sum_{n>=0} (-x)^(n^2) / (n^2)! ).

n	a(n)
0	1
1	1
2	2
3	6
4	23
5	110
6	630
7	4200
8	31990
9	274051
10	2608220
11	27304530
12	311820630
13	3857738170
14	51397726380
15	733698365400
16	11171708347799
17	180738402744866
18	3096027531044102
19	55980949167688884
20	1065496642477438890
21	21293801805033731190
22	445818117237227995260

[1, 1, 2, 6, 23, 110, 630, 4200, 31990, 274051, 2608220, 27304530, 311820630, 3857738170, 51397726380, 733698365400, 11171708347799, 180738402744866, 3096027531044102, 55980949167688884, 1065496642477438890, 21293801805033731190, 445818117237227995260]

cp's OEIS Frontend

A205802 Expansion of e.g.f. 1/( Sum_{n>=0} (-x)^(n^2) / (n^2)! ).

Table of values

List of values