A000894 - cp's OEIS frontend

A000894 a(n) = (2n)!(2n+1)! /((n+1)! n!^3).

n	a(n)
0	1
1	6
2	60
3	700
4	8820
5	116424
6	1585584
7	22084920
8	312869700
9	4491418360
10	65166397296
11	953799087696
12	14062422446800
13	208618354980000
14	3111393751416000
15	46619049708716400
16	701342468412012900

[1, 6, 60, 700, 8820, 116424, 1585584, 22084920, 312869700, 4491418360, 65166397296, 953799087696, 14062422446800, 208618354980000, 3111393751416000, 46619049708716400, 701342468412012900]

cp's OEIS Frontend

A000894 a(n) = (2n)!(2n+1)! /((n+1)! n!^3).

Table of values

List of values

cp's OEIS Frontend

A000894 a(n) = (2*n)!*(2*n+1)! /((n+1)! *n!^3).

Table of values

List of values

A000894 a(n) = (2n)!(2n+1)! /((n+1)! n!^3).