A306226 - cp's OEIS frontend

A306226 Triangle read by rows: T(n,k) = Sum_{i=0..n/2} C(n-i,i)C(n-i,k-i)C(n-1,i) (0 <= k <= n).

n	a(n)
0	1
1	1
2	1
3	1
4	3
5	2
6	1
7	7
8	11
9	5
10	1
11	13
12	36
13	37
14	13
15	1
16	21
17	92
18	160
19	123
20	35
21	1
22	31
23	200
24	520
25	655
26	401
27	96
28	1
29	43
30	387
31	1405
32	2575
33	2541
34	1293
35	267
36	1
37	57
38	686
39	3325
40	8295
41	11711
42	9492
43	4131
44	750
45	1
46	73
47	1136
48	7112
49	23128
50	43736
51	50148
52	34476
53	13107
54	2123
55	1
56	91
57	1782
58	14040
59	57708
60	140112
61	212856
62	205332
63	122535
64	41353
65	6046

[1, 1, 1, 1, 3, 2, 1, 7, 11, 5, 1, 13, 36, 37, 13, 1, 21, 92, 160, 123, 35, 1, 31, 200, 520, 655, 401, 96, 1, 43, 387, 1405, 2575, 2541, 1293, 267, 1, 57, 686, 3325, 8295, 11711, 9492, 4131, 750, 1, 73, 1136, 7112, 23128, 43736, 50148, 34476, 13107, 2123, 1, 91, 1782, 14040, 57708, 140112, 212856, 205332, 122535, 41353, 6046]

cp's OEIS Frontend

A306226 Triangle read by rows: T(n,k) = Sum_{i=0..n/2} C(n-i,i)C(n-i,k-i)C(n-1,i) (0 <= k <= n).

Table of values

List of values

cp's OEIS Frontend

A306226 Triangle read by rows: T(n,k) = Sum_{i=0..n/2} C(n-i,i)*C(n-i,k-i)*C(n-1,i) (0 <= k <= n).

Table of values

List of values

A306226 Triangle read by rows: T(n,k) = Sum_{i=0..n/2} C(n-i,i)C(n-i,k-i)C(n-1,i) (0 <= k <= n).