A166334 - cp's OEIS frontend

A166334 a(n) = (3n)!/(2^nn!).

n	a(n)
0	1
1	3
2	90
3	7560
4	1247400
5	340540200
6	138940401600
7	79196028912000
8	60109785944208000
9	58607041295602800000
10	71383376298044210400000
11	106218463931489785075200000
12	189599958117709266359232000000

[1, 3, 90, 7560, 1247400, 340540200, 138940401600, 79196028912000, 60109785944208000, 58607041295602800000, 71383376298044210400000, 106218463931489785075200000, 189599958117709266359232000000]

cp's OEIS Frontend

A166334 a(n) = (3n)!/(2^nn!).

Table of values

List of values

cp's OEIS Frontend

A166334 a(n) = (3*n)!/(2^n*n!).

Table of values

List of values

A166334 a(n) = (3n)!/(2^nn!).