A007272 - cp's OEIS frontend

A007272 Super ballot numbers: 60(2n)!/(n!(n+3)!).

n	a(n)
0	10
1	5
2	6
3	10
4	20
5	45
6	110
7	286
8	780
9	2210
10	6460
11	19380
12	59432
13	185725
14	589950
15	1900950
16	6203100
17	20470230
18	68234100
19	229514700
20	778354200
21	2659376850
22	9148256364
23	31667041260
24	110248217720
25	385868762020
26	1357193576760
27	4795417304552
28	17015996887120
29	60619488910365

[10, 5, 6, 10, 20, 45, 110, 286, 780, 2210, 6460, 19380, 59432, 185725, 589950, 1900950, 6203100, 20470230, 68234100, 229514700, 778354200, 2659376850, 9148256364, 31667041260, 110248217720, 385868762020, 1357193576760, 4795417304552, 17015996887120, 60619488910365]

cp's OEIS Frontend

A007272 Super ballot numbers: 60(2n)!/(n!(n+3)!).

Table of values

List of values

cp's OEIS Frontend

A007272 Super ballot numbers: 60*(2n)!/(n!*(n+3)!).

Table of values

List of values

A007272 Super ballot numbers: 60(2n)!/(n!(n+3)!).