A142243 - cp's OEIS frontend

A142243 Triangle T(n,k) = binomial(2n,k) binomial(2n-2k,n-k), read by rows; 0<=k<=n.

n	a(n)
0	1
1	2
2	2
3	6
4	8
5	6
6	20
7	36
8	30
9	20
10	70
11	160
12	168
13	112
14	70
15	252
16	700
17	900
18	720
19	420
20	252
21	924
22	3024
23	4620
24	4400
25	2970
26	1584
27	924
28	3432
29	12936
30	22932
31	25480
32	20020
33	12012
34	6006
35	3432
36	12870
37	54912
38	110880
39	141120
40	127400
41	87360
42	48048
43	22880
44	12870
45	48620

[1, 2, 2, 6, 8, 6, 20, 36, 30, 20, 70, 160, 168, 112, 70, 252, 700, 900, 720, 420, 252, 924, 3024, 4620, 4400, 2970, 1584, 924, 3432, 12936, 22932, 25480, 20020, 12012, 6006, 3432, 12870, 54912, 110880, 141120, 127400, 87360, 48048, 22880, 12870, 48620]

cp's OEIS Frontend

A142243 Triangle T(n,k) = binomial(2n,k) binomial(2n-2k,n-k), read by rows; 0<=k<=n.

Table of values

List of values

cp's OEIS Frontend

A142243 Triangle T(n,k) = binomial(2*n,k) *binomial(2*n-2*k,n-k), read by rows; 0<=k<=n.

Table of values

List of values

A142243 Triangle T(n,k) = binomial(2n,k) binomial(2n-2k,n-k), read by rows; 0<=k<=n.