A081406 - cp's OEIS frontend

A081406 a(n) = (n+1)*a(n-3), a(0)=a(1)=a(2)=1 for n>1.

n	a(n)
0	1
1	1
2	1
3	4
4	5
5	6
6	28
7	40
8	54
9	280
10	440
11	648
12	3640
13	6160
14	9720
15	58240
16	104720
17	174960
18	1106560
19	2094400
20	3674160
21	24344320
22	48171200
23	88179840
24	608608000
25	1252451200
26	2380855680
27	17041024000
28	36321084800
29	71425670400
30	528271744000
31	1162274713600

[1, 1, 1, 4, 5, 6, 28, 40, 54, 280, 440, 648, 3640, 6160, 9720, 58240, 104720, 174960, 1106560, 2094400, 3674160, 24344320, 48171200, 88179840, 608608000, 1252451200, 2380855680, 17041024000, 36321084800, 71425670400, 528271744000, 1162274713600]

cp's OEIS Frontend

A081406 a(n) = (n+1)*a(n-3), a(0)=a(1)=a(2)=1 for n>1.

Table of values

List of values