A193374 - cp's OEIS frontend

A193374 E.g.f.: A(x) = exp( Sum_{n>=1} x^(n(n+1)/2) / (n(n+1)/2) ).

n	a(n)
0	1
1	1
2	1
3	3
4	9
5	21
6	201
7	1191
8	4593
9	36009
10	620721
11	5297931
12	40360761
13	474989373
14	4345942329
15	122776895151
16	2118941145441
17	21344580276561
18	303071564084193
19	4476037678611219
20	59935820004483561
21	3838519441659950181
22	78361805638079449641
23	949279542954821272503

[1, 1, 1, 3, 9, 21, 201, 1191, 4593, 36009, 620721, 5297931, 40360761, 474989373, 4345942329, 122776895151, 2118941145441, 21344580276561, 303071564084193, 4476037678611219, 59935820004483561, 3838519441659950181, 78361805638079449641, 949279542954821272503]

cp's OEIS Frontend

A193374 E.g.f.: A(x) = exp( Sum_{n>=1} x^(n(n+1)/2) / (n(n+1)/2) ).

Table of values

List of values

cp's OEIS Frontend

A193374 E.g.f.: A(x) = exp( Sum_{n>=1} x^(n*(n+1)/2) / (n*(n+1)/2) ).

Table of values

List of values

A193374 E.g.f.: A(x) = exp( Sum_{n>=1} x^(n(n+1)/2) / (n(n+1)/2) ).