A254619 - cp's OEIS frontend

A254619 a(n) = 4^n(2n + 1)!/n!.

n	a(n)
0	1
1	24
2	960
3	53760
4	3870720
5	340623360
6	35424829440
7	4250979532800
8	578133216460800
9	87876248902041600
10	14763209815542988800
11	2716430606059909939200
12	543286121211981987840000
13	117349802181788109373440000

[1, 24, 960, 53760, 3870720, 340623360, 35424829440, 4250979532800, 578133216460800, 87876248902041600, 14763209815542988800, 2716430606059909939200, 543286121211981987840000, 117349802181788109373440000]

cp's OEIS Frontend

A254619 a(n) = 4^n(2n + 1)!/n!.

Table of values

List of values

cp's OEIS Frontend

A254619 a(n) = 4^n*(2*n + 1)!/n!.

Table of values

List of values

A254619 a(n) = 4^n(2n + 1)!/n!.