A004824 - cp's OEIS frontend

A004824 Denominator of 2^n(3n-3)!/( ((n-1)!)^3 * (2*n)! ).

n	a(n)
1	1
2	1
3	1
4	3
5	36
6	900
7	675
8	66150
9	6350400
10	34292160
11	857304000
12	12966723000
13	222286680000
14	2366686281960000
15	57983813908020000
16	1581376742946000000
17	2226578454067968000000
18	55155529133626521600000
19	114553791277532006400000
20	3490915210814660428800000

[1, 1, 1, 3, 36, 900, 675, 66150, 6350400, 34292160, 857304000, 12966723000, 222286680000, 2366686281960000, 57983813908020000, 1581376742946000000, 2226578454067968000000, 55155529133626521600000, 114553791277532006400000, 3490915210814660428800000]

cp's OEIS Frontend

A004824 Denominator of 2^n(3n-3)!/( ((n-1)!)^3 * (2*n)! ).

Table of values

List of values

cp's OEIS Frontend

A004824 Denominator of 2^n*(3*n-3)!/( ((n-1)!)^3 * (2*n)! ).

Table of values

List of values

A004824 Denominator of 2^n(3n-3)!/( ((n-1)!)^3 * (2*n)! ).