A337977 - cp's OEIS frontend

A337977 Triangle T(n,m) = C(n-1,n-m)Sum_{k=1..n} C(2k-2,k-1)*C(n-m,m-k)/m, m>0, n>0, n>=m.

n	a(n)
1	1
2	1
3	1
4	1
5	3
6	2
7	1
8	6
9	8
10	5
11	1
12	10
13	22
14	26
15	14
16	1
17	15
18	50
19	85
20	90
21	42
22	1
23	21
24	100
25	225
26	348
27	322
28	132
29	1
30	28
31	182
32	525
33	1050
34	1442
35	1176
36	429
37	1
38	36
39	308
40	1120
41	2730
42	4928
43	5992
44	4356
45	1430
46	1
47	45
48	492
49	2226
50	6426
51	14238
52	22920
53	24894
54	16302
55	4862

[1, 1, 1, 1, 3, 2, 1, 6, 8, 5, 1, 10, 22, 26, 14, 1, 15, 50, 85, 90, 42, 1, 21, 100, 225, 348, 322, 132, 1, 28, 182, 525, 1050, 1442, 1176, 429, 1, 36, 308, 1120, 2730, 4928, 5992, 4356, 1430, 1, 45, 492, 2226, 6426, 14238, 22920, 24894, 16302, 4862]

cp's OEIS Frontend

A337977 Triangle T(n,m) = C(n-1,n-m)Sum_{k=1..n} C(2k-2,k-1)*C(n-m,m-k)/m, m>0, n>0, n>=m.

Table of values

List of values

cp's OEIS Frontend

A337977 Triangle T(n,m) = C(n-1,n-m)*Sum_{k=1..n} C(2*k-2,k-1)*C(n-m,m-k)/m, m>0, n>0, n>=m.

Table of values

List of values

A337977 Triangle T(n,m) = C(n-1,n-m)Sum_{k=1..n} C(2k-2,k-1)*C(n-m,m-k)/m, m>0, n>0, n>=m.