A205801 - cp's OEIS frontend

A205801 Expansion of e.g.f. exp( Sum_{n>=1} x^(n^2) / (n^2) ).

n	a(n)
0	1
1	1
2	1
3	1
4	7
5	31
6	91
7	211
8	1681
9	52417
10	461161
11	2427481
12	10744471
13	219643711
14	2619643027
15	18939628891
16	1410692293921
17	23943786881281
18	263853697605841
19	2237281161036337
20	53316533506210471
21	900164075618402911
22	11265158441537890891
23	112769404714319769571

[1, 1, 1, 1, 7, 31, 91, 211, 1681, 52417, 461161, 2427481, 10744471, 219643711, 2619643027, 18939628891, 1410692293921, 23943786881281, 263853697605841, 2237281161036337, 53316533506210471, 900164075618402911, 11265158441537890891, 112769404714319769571]

cp's OEIS Frontend

A205801 Expansion of e.g.f. exp( Sum_{n>=1} x^(n^2) / (n^2) ).

Table of values

List of values