A047750 - cp's OEIS frontend

A047750 If n mod 2 = 0 then m := n/2 and a(n) = (3m)!(5m+1)/((m+1)!(2m+1)!); otherwise m := (n-1)/2, a(n) = 6(3m+2)!/(m!(2*m+3)!).

n	a(n)
0	1
1	2
2	3
3	6
4	11
5	24
6	48
7	110
8	231
9	546
10	1183
11	2856
12	6324
13	15504
14	34884
15	86526
16	197087
17	493350
18	1134705
19	2861430
20	6633315
21	16829280
22	39268320
23	100134216
24	234930276
25	601661144
26	1418201268
27	3645533040
28	8627761528
29	22249511328

[1, 2, 3, 6, 11, 24, 48, 110, 231, 546, 1183, 2856, 6324, 15504, 34884, 86526, 197087, 493350, 1134705, 2861430, 6633315, 16829280, 39268320, 100134216, 234930276, 601661144, 1418201268, 3645533040, 8627761528, 22249511328]

cp's OEIS Frontend

A047750 If n mod 2 = 0 then m := n/2 and a(n) = (3m)!(5m+1)/((m+1)!(2m+1)!); otherwise m := (n-1)/2, a(n) = 6(3m+2)!/(m!(2*m+3)!).

Table of values

List of values

cp's OEIS Frontend

A047750 If n mod 2 = 0 then m := n/2 and a(n) = (3*m)!*(5*m+1)/((m+1)!*(2*m+1)!); otherwise m := (n-1)/2, a(n) = 6*(3*m+2)!/(m!*(2*m+3)!).

Table of values

List of values

A047750 If n mod 2 = 0 then m := n/2 and a(n) = (3m)!(5m+1)/((m+1)!(2m+1)!); otherwise m := (n-1)/2, a(n) = 6(3m+2)!/(m!(2*m+3)!).