A227528 - cp's OEIS frontend

A227528 a(n) = numerator of r(n) = 2(3n+2)!/((2n)!2^n), n>=0.

n	a(n)
0	4
1	60
2	840
3	13860
4	270270
5	6126120
6	158722200
7	4633467300
8	150587687250
9	5394582443250
10	211240491462000
11	8977720887135000
12	411608985890602500
13	20251162105817643000
14	1064311075116860571000
15	59509669251792738478500
16	3527387653231263127556250
17	220942735734212754080568750

[4, 60, 840, 13860, 270270, 6126120, 158722200, 4633467300, 150587687250, 5394582443250, 211240491462000, 8977720887135000, 411608985890602500, 20251162105817643000, 1064311075116860571000, 59509669251792738478500, 3527387653231263127556250, 220942735734212754080568750]

cp's OEIS Frontend

A227528 a(n) = numerator of r(n) = 2(3n+2)!/((2n)!2^n), n>=0.

Table of values

List of values

cp's OEIS Frontend

A227528 a(n) = numerator of r(n) = 2*(3*n+2)!/((2*n)!*2^n), n>=0.

Table of values

List of values

A227528 a(n) = numerator of r(n) = 2(3n+2)!/((2n)!2^n), n>=0.