A064633 - cp's OEIS frontend

A064633 a(n) = 3^nn!(n+2)!/2!.

n	a(n)
0	1
1	9
2	216
3	9720
4	699840
5	73483200
6	10581580800
7	1999918771200
8	479980505088000
9	142554210011136000
10	51319515604008960000
11	22016072194119843840000
12	11096100385836401295360000
13	6491218725714294757785600000
14	4362098983680006077231923200000

[1, 9, 216, 9720, 699840, 73483200, 10581580800, 1999918771200, 479980505088000, 142554210011136000, 51319515604008960000, 22016072194119843840000, 11096100385836401295360000, 6491218725714294757785600000, 4362098983680006077231923200000]

cp's OEIS Frontend

A064633 a(n) = 3^nn!(n+2)!/2!.

Table of values

List of values

cp's OEIS Frontend

A064633 a(n) = 3^n*n!*(n+2)!/2!.

Table of values

List of values

A064633 a(n) = 3^nn!(n+2)!/2!.