A345871 - cp's OEIS frontend

A345871 Expansion of e.g.f. Product_{k>=1} ((1 + x^k)/(1 - x^k))^(1/(2*k!)).

n	a(n)
0	1
1	1
2	2
3	7
4	23
5	116
6	707
7	4775
8	34092
9	326723
10	3255927
11	35131570
12	404387205
13	5178352921
14	72399248378
15	1124473250815
16	17051538263075
17	287692287405292
18	5225129815132463
19	97469631563584567
20	1891891950093538380
21	40846072052629411027
22	895935864764993940483

[1, 1, 2, 7, 23, 116, 707, 4775, 34092, 326723, 3255927, 35131570, 404387205, 5178352921, 72399248378, 1124473250815, 17051538263075, 287692287405292, 5225129815132463, 97469631563584567, 1891891950093538380, 40846072052629411027, 895935864764993940483]

cp's OEIS Frontend

A345871 Expansion of e.g.f. Product_{k>=1} ((1 + x^k)/(1 - x^k))^(1/(2*k!)).

Table of values

List of values