A344317 - cp's OEIS frontend

A344317 a(n) = n*a(n-1) + n^(1+n mod 2), a(0) = 1.

n	a(n)
0	1
1	2
2	6
3	19
4	80
5	401
6	2412
7	16885
8	135088
9	1215793
10	12157940
11	133737341
12	1604848104
13	20863025353
14	292082354956
15	4381235324341
16	70099765189472
17	1191696008221025
18	21450528147978468
19	407560034811590893
20	8151200696231817880
21	171175214620868175481

[1, 2, 6, 19, 80, 401, 2412, 16885, 135088, 1215793, 12157940, 133737341, 1604848104, 20863025353, 292082354956, 4381235324341, 70099765189472, 1191696008221025, 21450528147978468, 407560034811590893, 8151200696231817880, 171175214620868175481]

cp's OEIS Frontend

A344317 a(n) = n*a(n-1) + n^(1+n mod 2), a(0) = 1.

Table of values

List of values