A329258 - cp's OEIS frontend

A329258 Expansion of e.g.f. -log(1 - Sum_{k>=1} x^(k(k + 1)/2) / (k(k + 1)/2)!).

n	a(n)
0	0
1	1
2	1
3	3
4	10
5	44
6	251
7	1707
8	13496
9	122108
10	1243201
11	14060771
12	174932274
13	2374268974
14	34910039164
15	552782630401
16	9378254813944
17	169714311278784
18	3263200704705648
19	66434349885323328
20	1427653109477475098
21	32294539445483981821
22	767051977023372086530

[0, 1, 1, 3, 10, 44, 251, 1707, 13496, 122108, 1243201, 14060771, 174932274, 2374268974, 34910039164, 552782630401, 9378254813944, 169714311278784, 3263200704705648, 66434349885323328, 1427653109477475098, 32294539445483981821, 767051977023372086530]

cp's OEIS Frontend

A329258 Expansion of e.g.f. -log(1 - Sum_{k>=1} x^(k(k + 1)/2) / (k(k + 1)/2)!).

Table of values

List of values

cp's OEIS Frontend

A329258 Expansion of e.g.f. -log(1 - Sum_{k>=1} x^(k*(k + 1)/2) / (k*(k + 1)/2)!).

Table of values

List of values

A329258 Expansion of e.g.f. -log(1 - Sum_{k>=1} x^(k(k + 1)/2) / (k(k + 1)/2)!).