A384496 - cp's OEIS frontend

A384496 a(n) = Sum_{k=0..n} binomial(n,k)^3 * abs(Stirling1(2k,k)) abs(Stirling1(2n-2k,n-k)).

n	a(n)
0	1
1	2
2	30
3	1044
4	68474
5	7180900
6	1050625720
7	196205015216
8	44361477901818
9	11751610490415828
10	3567182462164189140
11	1220655384720089761080
12	464932034143270233958352
13	195108754505934104188716064
14	89452431045403310104416682304
15	44489455448017524780072427344000

[1, 2, 30, 1044, 68474, 7180900, 1050625720, 196205015216, 44361477901818, 11751610490415828, 3567182462164189140, 1220655384720089761080, 464932034143270233958352, 195108754505934104188716064, 89452431045403310104416682304, 44489455448017524780072427344000]

cp's OEIS Frontend

A384496 a(n) = Sum_{k=0..n} binomial(n,k)^3 * abs(Stirling1(2k,k)) abs(Stirling1(2n-2k,n-k)).

Table of values

List of values

cp's OEIS Frontend

A384496 a(n) = Sum_{k=0..n} binomial(n,k)^3 * abs(Stirling1(2*k,k)) * abs(Stirling1(2*n-2*k,n-k)).

Table of values

List of values

A384496 a(n) = Sum_{k=0..n} binomial(n,k)^3 * abs(Stirling1(2k,k)) abs(Stirling1(2n-2k,n-k)).