A062810 - cp's OEIS frontend

A062810 a(n) = Sum_{i=1..n} i^(n - i) + (n - i)^i.

n	a(n)
1	1
2	3
3	7
4	17
5	45
6	131
7	419
8	1465
9	5561
10	22755
11	99727
12	465537
13	2303829
14	12037571
15	66174411
16	381560425
17	2301307841
18	14483421859
19	94909491607
20	646309392369
21	4565559980989
22	33401808977411
23	252713264780595
24	1974606909857945

[1, 3, 7, 17, 45, 131, 419, 1465, 5561, 22755, 99727, 465537, 2303829, 12037571, 66174411, 381560425, 2301307841, 14483421859, 94909491607, 646309392369, 4565559980989, 33401808977411, 252713264780595, 1974606909857945]

cp's OEIS Frontend

A062810 a(n) = Sum_{i=1..n} i^(n - i) + (n - i)^i.

Table of values

List of values