A344419 a(n) = n*a(n-1) + n^(n mod 2), a(0) = 0.
0, 1, 3, 12, 49, 250, 1501, 10514, 84113, 757026, 7570261, 83272882, 999274585, 12990569618, 181867974653, 2728019619810, 43648313916961, 742021336588354, 13356384058590373, 253771297113217106, 5075425942264342121, 106583944787551184562, 2344846785326126060365
Offset: 0
Keywords
Links
- Alois P. Heinz, Table of n, a(n) for n = 0..450
Programs
-
Maple
a:= proc(n) a(n):= n*a(n-1) + n^(n mod 2) end: a(0):= 0: seq(a(n), n=0..23);