A248045 - cp's OEIS frontend

A248045 (2(n-1))! (2n-1)! / (n (n-1)!^3).

n	a(n)
1	1
2	6
3	120
4	4200
5	211680
6	13970880
7	1141620480
8	111307996800
9	12614906304000
10	1629845894476800
11	236475822507724800
12	38072607423743692800
13	6735922851893114880000
14	1299070835722243584000000
15	271245990498804460339200000
16	60962536364606302461235200000

[1, 6, 120, 4200, 211680, 13970880, 1141620480, 111307996800, 12614906304000, 1629845894476800, 236475822507724800, 38072607423743692800, 6735922851893114880000, 1299070835722243584000000, 271245990498804460339200000, 60962536364606302461235200000]

cp's OEIS Frontend

A248045 (2(n-1))! (2n-1)! / (n (n-1)!^3).

Table of values

List of values

cp's OEIS Frontend

A248045 (2*(n-1))! * (2*n-1)! / (n * (n-1)!^3).

Table of values

List of values

A248045 (2(n-1))! (2n-1)! / (n (n-1)!^3).