A226287 - cp's OEIS frontend

A226287 a(n) = [n/2]![(n+1)/2]!C([n/2],6)*C([(n+1)/2],6).

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	0
12	518400
13	25401600
14	1244678400
15	39829708800
16	1274550681600
17	34412868403200
18	929147446886400
19	23228686172160000
20	580717154304000000
21	14053355134156800000
22	340091194246594560000

[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 518400, 25401600, 1244678400, 39829708800, 1274550681600, 34412868403200, 929147446886400, 23228686172160000, 580717154304000000, 14053355134156800000, 340091194246594560000]

cp's OEIS Frontend

A226287 a(n) = [n/2]![(n+1)/2]!C([n/2],6)*C([(n+1)/2],6).

Table of values

List of values

cp's OEIS Frontend

A226287 a(n) = [n/2]!*[(n+1)/2]!*C([n/2],6)*C([(n+1)/2],6).

Table of values

List of values

A226287 a(n) = [n/2]![(n+1)/2]!C([n/2],6)*C([(n+1)/2],6).