A205799 - cp's OEIS frontend

A205799 E.g.f.: exp( Sum_{n>=1} x^(n(n+1)/2) / (n(n+1)/2)! ).

n	a(n)
0	1
1	1
2	1
3	2
4	5
5	11
6	32
7	113
8	365
9	1373
10	6072
11	25279
12	115633
13	606321
14	3051413
15	16344785
16	98402881
17	576283953
18	3523586227
19	23840955908
20	158428389359
21	1085566420290
22	8128568533790
23	60203101002122
24	455911264482697
25	3734114950288571
26	30413492882578846

[1, 1, 1, 2, 5, 11, 32, 113, 365, 1373, 6072, 25279, 115633, 606321, 3051413, 16344785, 98402881, 576283953, 3523586227, 23840955908, 158428389359, 1085566420290, 8128568533790, 60203101002122, 455911264482697, 3734114950288571, 30413492882578846]

cp's OEIS Frontend

A205799 E.g.f.: exp( Sum_{n>=1} x^(n(n+1)/2) / (n(n+1)/2)! ).

Table of values

List of values

cp's OEIS Frontend

A205799 E.g.f.: exp( Sum_{n>=1} x^(n*(n+1)/2) / (n*(n+1)/2)! ).

Table of values

List of values

A205799 E.g.f.: exp( Sum_{n>=1} x^(n(n+1)/2) / (n(n+1)/2)! ).