A087727 - cp's OEIS frontend

A087727 Triangle read by rows: T(n,k) = (2 * (binomial(n,k)) * (n + 2 * k + 3)!)/((k + 1)! * (k + 2)! * (n + 3)!).

n	a(n)
0	1
1	1
2	5
3	1
4	14
5	42
6	1
7	28
8	210
9	462
10	1
11	48
12	660
13	3432
14	6006
15	1
16	75
17	1650
18	15015
19	60060
20	87516
21	1
22	110
23	3575
24	50050
25	340340
26	1108536
27	1385670
28	1
29	154
30	7007
31	140140
32	1429428
33	7759752
34	21339318
35	23371634
36	1
37	208
38	12740
39	346528
40	4938024
41	39504192
42	178474296
43	424938800
44	414315330

[1, 1, 5, 1, 14, 42, 1, 28, 210, 462, 1, 48, 660, 3432, 6006, 1, 75, 1650, 15015, 60060, 87516, 1, 110, 3575, 50050, 340340, 1108536, 1385670, 1, 154, 7007, 140140, 1429428, 7759752, 21339318, 23371634, 1, 208, 12740, 346528, 4938024, 39504192, 178474296, 424938800, 414315330]

cp's OEIS Frontend

A087727 Triangle read by rows: T(n,k) = (2 * (binomial(n,k)) * (n + 2 * k + 3)!)/((k + 1)! * (k + 2)! * (n + 3)!).

Table of values

List of values