A364517 - cp's OEIS frontend

A364517 a(n) = (5/7) * (9n)!(7n/2)!^2/((9n/2)!(7n)!(5n/2)!*n!^2) for n >= 1, with a(0) = 1.

n	a(n)
0	1
1	40
2	7650
3	1847560
4	494944450
5	140625140040
6	41500392000480
7	12576565436409000
8	3886690320522202050
9	1219380045859742166400
10	387154587452271772676400
11	124120231850529022319265600
12	40113527971798583517288018400
13	13052024252899352166622940568000

[1, 40, 7650, 1847560, 494944450, 140625140040, 41500392000480, 12576565436409000, 3886690320522202050, 1219380045859742166400, 387154587452271772676400, 124120231850529022319265600, 40113527971798583517288018400, 13052024252899352166622940568000]

cp's OEIS Frontend

A364517 a(n) = (5/7) * (9n)!(7n/2)!^2/((9n/2)!(7n)!(5n/2)!*n!^2) for n >= 1, with a(0) = 1.

Table of values

List of values

cp's OEIS Frontend

A364517 a(n) = (5/7) * (9*n)!*(7*n/2)!^2/((9*n/2)!*(7*n)!*(5*n/2)!*n!^2) for n >= 1, with a(0) = 1.

Table of values

List of values

A364517 a(n) = (5/7) * (9n)!(7n/2)!^2/((9n/2)!(7n)!(5n/2)!*n!^2) for n >= 1, with a(0) = 1.