A080721 - cp's OEIS frontend

A080721 Triangle of binomial(n,k)*(binomial(n+k,k)-binomial(n+k-2,k-1)).

n	a(n)
0	1
1	1
2	1
3	1
4	4
5	4
6	1
7	9
8	21
9	14
10	1
11	16
12	66
13	100
14	50
15	1
16	25
17	160
18	410
19	455
20	182
21	1
22	36
23	330
24	1260
25	2310
26	2016
27	672
28	1
29	49
30	609
31	3220
32	8610
33	12222
34	8778
35	2508
36	1
37	64
38	1036
39	7224
40	26250
41	53592
42	61908
43	37752
44	9438
45	1
46	81
47	1656
48	14700
49	69300
50	189882
51	312312
52	303732
53	160875
54	35750
55	1

[1, 1, 1, 1, 4, 4, 1, 9, 21, 14, 1, 16, 66, 100, 50, 1, 25, 160, 410, 455, 182, 1, 36, 330, 1260, 2310, 2016, 672, 1, 49, 609, 3220, 8610, 12222, 8778, 2508, 1, 64, 1036, 7224, 26250, 53592, 61908, 37752, 9438, 1, 81, 1656, 14700, 69300, 189882, 312312, 303732, 160875, 35750, 1]

cp's OEIS Frontend

A080721 Triangle of binomial(n,k)*(binomial(n+k,k)-binomial(n+k-2,k-1)).

Table of values

List of values