A065140 - cp's OEIS frontend

A065140 a(n) = 2^n(2n)!.

n	a(n)
0	1
1	4
2	96
3	5760
4	645120
5	116121600
6	30656102400
7	11158821273600
8	5356234211328000
9	3278015337332736000
10	2491291656372879360000
11	2301953490488540528640000
12	2541356653499348743618560000
13	3303763649549153366704128000000
14	4995290638118319890456641536000000

[1, 4, 96, 5760, 645120, 116121600, 30656102400, 11158821273600, 5356234211328000, 3278015337332736000, 2491291656372879360000, 2301953490488540528640000, 2541356653499348743618560000, 3303763649549153366704128000000, 4995290638118319890456641536000000]

cp's OEIS Frontend

A065140 a(n) = 2^n(2n)!.

Table of values

List of values

cp's OEIS Frontend

A065140 a(n) = 2^n*(2*n)!.

Table of values

List of values

A065140 a(n) = 2^n(2n)!.