A362522 - cp's OEIS frontend

A362522 a(n) = n! * Sum_{k=0..floor(n/2)} (k+1)^(k-1) / (k! * (n-2*k)!).

n	a(n)
0	1
1	1
2	3
3	7
4	49
5	201
6	2491
7	14743
8	266337
9	2055889
10	49051891
11	466650471
12	13873711633
13	156839920537
14	5591748678699
15	73222243463671
16	3046762637864641
17	45346835284775073
18	2158148557098011107
19	35980450963558606279
20	1928292118820446611441

[1, 1, 3, 7, 49, 201, 2491, 14743, 266337, 2055889, 49051891, 466650471, 13873711633, 156839920537, 5591748678699, 73222243463671, 3046762637864641, 45346835284775073, 2158148557098011107, 35980450963558606279, 1928292118820446611441]

cp's OEIS Frontend

A362522 a(n) = n! * Sum_{k=0..floor(n/2)} (k+1)^(k-1) / (k! * (n-2*k)!).

Table of values

List of values