A192564 - cp's OEIS frontend

A192564 a(n) = Sum_{k=0..n} abs(Stirling1(n,k))Stirling2(n,k)(k!)^2.

n	a(n)
0	1
1	1
2	5
3	74
4	2186
5	106524
6	7703896
7	773034912
8	102673179360
9	17429291711280
10	3680338415133024
11	945958227345434016
12	290761516548473591232
13	105309706114422166775040
14	44384982810939832477305600
15	21536846291826596564956445184

[1, 1, 5, 74, 2186, 106524, 7703896, 773034912, 102673179360, 17429291711280, 3680338415133024, 945958227345434016, 290761516548473591232, 105309706114422166775040, 44384982810939832477305600, 21536846291826596564956445184]

cp's OEIS Frontend

A192564 a(n) = Sum_{k=0..n} abs(Stirling1(n,k))Stirling2(n,k)(k!)^2.

Table of values

List of values

cp's OEIS Frontend

A192564 a(n) = Sum_{k=0..n} abs(Stirling1(n,k))*Stirling2(n,k)*(k!)^2.

Table of values

List of values

A192564 a(n) = Sum_{k=0..n} abs(Stirling1(n,k))Stirling2(n,k)(k!)^2.