A257488 - cp's OEIS frontend

A257488 Triangle, read by rows, T(n,k) = kSum_{i=0..n-k} C(2i+2k,i)C(n-i-1,k-1)/(i+k) for 1 <= k <= n.

n	a(n)
1	1
2	3
3	1
4	8
5	6
6	1
7	22
8	25
9	9
10	1
11	64
12	92
13	51
14	12
15	1
16	196
17	324
18	237
19	86
20	15
21	1
22	625
23	1128
24	996
25	484
26	130
27	18
28	1
29	2055
30	3934
31	3966
32	2377
33	860
34	183
35	21
36	1
37	6917
38	13812
39	15335
40	10744
41	4845
42	1392
43	245
44	24
45	1
46	23713
47	48884
48	58359
49	46068
50	24603
51	8859
52	2107
53	316
54	27
55	1

[1, 3, 1, 8, 6, 1, 22, 25, 9, 1, 64, 92, 51, 12, 1, 196, 324, 237, 86, 15, 1, 625, 1128, 996, 484, 130, 18, 1, 2055, 3934, 3966, 2377, 860, 183, 21, 1, 6917, 13812, 15335, 10744, 4845, 1392, 245, 24, 1, 23713, 48884, 58359, 46068, 24603, 8859, 2107, 316, 27, 1]

cp's OEIS Frontend

A257488 Triangle, read by rows, T(n,k) = kSum_{i=0..n-k} C(2i+2k,i)C(n-i-1,k-1)/(i+k) for 1 <= k <= n.

Table of values

List of values

cp's OEIS Frontend

A257488 Triangle, read by rows, T(n,k) = k*Sum_{i=0..n-k} C(2*i+2*k,i)*C(n-i-1,k-1)/(i+k) for 1 <= k <= n.

Table of values

List of values

A257488 Triangle, read by rows, T(n,k) = kSum_{i=0..n-k} C(2i+2k,i)C(n-i-1,k-1)/(i+k) for 1 <= k <= n.