A383439 - cp's OEIS frontend

A383439 a(n) = (5n)!/((n!)^2(3*n + 1)!).

n	a(n)
0	1
1	5
2	180
3	10010
4	678300
5	51482970
6	4206302100
7	361913666400
8	32356261929420
9	2979510862285100
10	280884023785324960
11	26990111025198348300
12	2634899457411931245900
13	260690108634780944767200
14	26088052554768282442056000
15	2636591265602354831196585600
16	268771779551047800167424355500

[1, 5, 180, 10010, 678300, 51482970, 4206302100, 361913666400, 32356261929420, 2979510862285100, 280884023785324960, 26990111025198348300, 2634899457411931245900, 260690108634780944767200, 26088052554768282442056000, 2636591265602354831196585600, 268771779551047800167424355500]

cp's OEIS Frontend

A383439 a(n) = (5n)!/((n!)^2(3*n + 1)!).

Table of values

List of values

cp's OEIS Frontend

A383439 a(n) = (5*n)!/((n!)^2*(3*n + 1)!).

Table of values

List of values

A383439 a(n) = (5n)!/((n!)^2(3*n + 1)!).