A000984 - cp's OEIS frontend

A000984 Central binomial coefficients: binomial(2n,n) = (2n)!/(n!)^2.

n	a(n)
0	1
1	2
2	6
3	20
4	70
5	252
6	924
7	3432
8	12870
9	48620
10	184756
11	705432
12	2704156
13	10400600
14	40116600
15	155117520
16	601080390
17	2333606220
18	9075135300
19	35345263800
20	137846528820
21	538257874440
22	2104098963720
23	8233430727600
24	32247603683100
25	126410606437752
26	495918532948104
27	1946939425648112

[1, 2, 6, 20, 70, 252, 924, 3432, 12870, 48620, 184756, 705432, 2704156, 10400600, 40116600, 155117520, 601080390, 2333606220, 9075135300, 35345263800, 137846528820, 538257874440, 2104098963720, 8233430727600, 32247603683100, 126410606437752, 495918532948104, 1946939425648112]

cp's OEIS Frontend

A000984 Central binomial coefficients: binomial(2n,n) = (2n)!/(n!)^2.

Table of values

List of values

cp's OEIS Frontend

A000984 Central binomial coefficients: binomial(2*n,n) = (2*n)!/(n!)^2.

Table of values

List of values

A000984 Central binomial coefficients: binomial(2n,n) = (2n)!/(n!)^2.