A281260 - cp's OEIS frontend

A281260 Triangular array of generalized Narayana numbers T(n,k) = 2binomial(n+1,k) binomial(n-2,k-1)/(n+1) for n >= 1 and 0 <= k <= n-1, read by rows.

n	a(n)
1	1
2	0
3	2
4	0
5	2
6	3
7	0
8	2
9	8
10	4
11	0
12	2
13	15
14	20
15	5
16	0
17	2
18	24
19	60
20	40
21	6
22	0
23	2
24	35
25	140
26	175
27	70
28	7
29	0
30	2
31	48
32	280
33	560
34	420
35	112
36	8
37	0
38	2
39	63
40	504
41	1470
42	1764
43	882
44	168
45	9
46	0
47	2
48	80
49	840
50	3360
51	5880
52	4704
53	1680
54	240
55	10
56	0
57	2
58	99
59	1320
60	6930
61	16632
62	19404
63	11088
64	2970
65	330
66	11
67	0
68	2
69	120
70	1980
71	13200
72	41580

[1, 0, 2, 0, 2, 3, 0, 2, 8, 4, 0, 2, 15, 20, 5, 0, 2, 24, 60, 40, 6, 0, 2, 35, 140, 175, 70, 7, 0, 2, 48, 280, 560, 420, 112, 8, 0, 2, 63, 504, 1470, 1764, 882, 168, 9, 0, 2, 80, 840, 3360, 5880, 4704, 1680, 240, 10, 0, 2, 99, 1320, 6930, 16632, 19404, 11088, 2970, 330, 11, 0, 2, 120, 1980, 13200, 41580]

cp's OEIS Frontend

A281260 Triangular array of generalized Narayana numbers T(n,k) = 2binomial(n+1,k) binomial(n-2,k-1)/(n+1) for n >= 1 and 0 <= k <= n-1, read by rows.

Table of values

List of values

cp's OEIS Frontend

A281260 Triangular array of generalized Narayana numbers T(n,k) = 2*binomial(n+1,k)* binomial(n-2,k-1)/(n+1) for n >= 1 and 0 <= k <= n-1, read by rows.

Table of values

List of values

A281260 Triangular array of generalized Narayana numbers T(n,k) = 2binomial(n+1,k) binomial(n-2,k-1)/(n+1) for n >= 1 and 0 <= k <= n-1, read by rows.