A374648 - cp's OEIS frontend

A374648 a(n) = n! / (floor(n/3))! - n! / (floor(n/2))!.

n	a(n)
0	0
1	0
2	0
3	0
4	12
5	60
6	240
7	1680
8	18480
9	45360
10	574560
11	6320160
12	19293120
13	250810560
14	3615131520
15	10637827200
16	173837664000
17	2955240288000
18	8874542476800
19	168616307059200
20	3378360124339200
21	10123012406707200
22	222987858828134400
23	5128720753047091200

[0, 0, 0, 0, 12, 60, 240, 1680, 18480, 45360, 574560, 6320160, 19293120, 250810560, 3615131520, 10637827200, 173837664000, 2955240288000, 8874542476800, 168616307059200, 3378360124339200, 10123012406707200, 222987858828134400, 5128720753047091200]

cp's OEIS Frontend

A374648 a(n) = n! / (floor(n/3))! - n! / (floor(n/2))!.

Table of values

List of values