A337991 - cp's OEIS frontend

A337991 Triangle read by rows: T(n,m) = Sum_{i=1..n} C(n,i-m)C(n+m-i,i-1)C(n+m-i,m)/n, with T(0,0)=1.

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	1
6	2
7	5
8	4
9	1
10	4
11	13
12	15
13	7
14	1
15	9
16	35
17	52
18	36
19	11
20	1
21	21
22	96
23	175
24	160
25	75
26	16
27	1
28	51
29	267
30	576
31	655
32	415
33	141
34	22
35	1
36	127
37	750
38	1869
39	2541
40	2030
41	952
42	245
43	29
44	1
45	323
46	2123
47	6000
48	9492
49	9156
50	5488
51	1988
52	400
53	37
54	1
55	835
56	6046
57	19107
58	34476
59	38976
60	28476
61	13356
62	3852
63	621
64	46
65	1

[1, 1, 1, 1, 2, 1, 2, 5, 4, 1, 4, 13, 15, 7, 1, 9, 35, 52, 36, 11, 1, 21, 96, 175, 160, 75, 16, 1, 51, 267, 576, 655, 415, 141, 22, 1, 127, 750, 1869, 2541, 2030, 952, 245, 29, 1, 323, 2123, 6000, 9492, 9156, 5488, 1988, 400, 37, 1, 835, 6046, 19107, 34476, 38976, 28476, 13356, 3852, 621, 46, 1]

cp's OEIS Frontend

A337991 Triangle read by rows: T(n,m) = Sum_{i=1..n} C(n,i-m)C(n+m-i,i-1)C(n+m-i,m)/n, with T(0,0)=1.

Table of values

List of values

cp's OEIS Frontend

A337991 Triangle read by rows: T(n,m) = Sum_{i=1..n} C(n,i-m)*C(n+m-i,i-1)*C(n+m-i,m)/n, with T(0,0)=1.

Table of values

List of values

A337991 Triangle read by rows: T(n,m) = Sum_{i=1..n} C(n,i-m)C(n+m-i,i-1)C(n+m-i,m)/n, with T(0,0)=1.