A156995 - cp's OEIS frontend

A156995 Triangle T(n, k) = 2nbinomial(2n-k, k)(n-k)!/(2*n-k), with T(0, 0) = 2, read by rows.

n	a(n)
0	2
1	1
2	2
3	2
4	4
5	2
6	6
7	12
8	9
9	2
10	24
11	48
12	40
13	16
14	2
15	120
16	240
17	210
18	100
19	25
20	2
21	720
22	1440
23	1296
24	672
25	210
26	36
27	2
28	5040
29	10080
30	9240
31	5040
32	1764
33	392
34	49
35	2
36	40320
37	80640
38	74880
39	42240
40	15840
41	4032
42	672
43	64
44	2
45	362880
46	725760
47	680400
48	393120
49	154440
50	42768

[2, 1, 2, 2, 4, 2, 6, 12, 9, 2, 24, 48, 40, 16, 2, 120, 240, 210, 100, 25, 2, 720, 1440, 1296, 672, 210, 36, 2, 5040, 10080, 9240, 5040, 1764, 392, 49, 2, 40320, 80640, 74880, 42240, 15840, 4032, 672, 64, 2, 362880, 725760, 680400, 393120, 154440, 42768]

cp's OEIS Frontend

A156995 Triangle T(n, k) = 2nbinomial(2n-k, k)(n-k)!/(2*n-k), with T(0, 0) = 2, read by rows.

Table of values

List of values

cp's OEIS Frontend

A156995 Triangle T(n, k) = 2*n*binomial(2*n-k, k)*(n-k)!/(2*n-k), with T(0, 0) = 2, read by rows.

Table of values

List of values

A156995 Triangle T(n, k) = 2nbinomial(2n-k, k)(n-k)!/(2*n-k), with T(0, 0) = 2, read by rows.