A342197 - cp's OEIS frontend

A342197 a(0) = 1; a(n) = Sum_{k=1..n} binomial(n,k)^3 * a(k-1).

n	a(n)
0	1
1	1
2	9
3	63
4	919
5	18919
6	505639
7	18602319
8	877402487
9	51212704151
10	3688010412503
11	321523601578079
12	33283248550719793
13	4050897039400696253
14	574469890816237292037
15	93943844587040615104177
16	17565329004174205621822169
17	3730161837629377369026433019

[1, 1, 9, 63, 919, 18919, 505639, 18602319, 877402487, 51212704151, 3688010412503, 321523601578079, 33283248550719793, 4050897039400696253, 574469890816237292037, 93943844587040615104177, 17565329004174205621822169, 3730161837629377369026433019]

cp's OEIS Frontend

A342197 a(0) = 1; a(n) = Sum_{k=1..n} binomial(n,k)^3 * a(k-1).

Table of values

List of values