A001459 - cp's OEIS frontend

A001459 a(n) = (5n)!/((2n)!(2n)!*n!).

n	a(n)
0	1
1	30
2	3150
3	420420
4	62355150
5	9816086280
6	1605660228900
7	269764879032000
8	46225898052627150
9	8042050347997165500
10	1415997888807961859400
11	251762943910387780962000
12	45125969443194371927422500
13	8143514687130622653091029120
14	1478138194032735032800001630400

[1, 30, 3150, 420420, 62355150, 9816086280, 1605660228900, 269764879032000, 46225898052627150, 8042050347997165500, 1415997888807961859400, 251762943910387780962000, 45125969443194371927422500, 8143514687130622653091029120, 1478138194032735032800001630400]

cp's OEIS Frontend

A001459 a(n) = (5n)!/((2n)!(2n)!*n!).

Table of values

List of values

cp's OEIS Frontend

A001459 a(n) = (5*n)!/((2*n)!*(2*n)!*n!).

Table of values

List of values

A001459 a(n) = (5n)!/((2n)!(2n)!*n!).