A338934 - cp's OEIS frontend

A338934 Square array T(i,j) = Sum_{k=0...min(i,j)} C(i,k)C(j,k)C(2*k,k) (i>=0,j>=0), read by antidiagonals.

n	a(n)
0	1
1	1
2	1
3	1
4	3
5	1
6	1
7	5
8	5
9	1
10	1
11	7
12	15
13	7
14	1
15	1
16	9
17	31
18	31
19	9
20	1
21	1
22	11
23	53
24	93
25	53
26	11
27	1
28	1
29	13
30	81
31	213
32	213
33	81
34	13
35	1
36	1
37	15
38	115
39	411
40	639
41	411
42	115
43	15
44	1
45	1
46	17
47	155
48	707
49	1551
50	1551
51	707
52	155
53	17
54	1
55	1
56	19
57	201
58	1121
59	3239
60	4653
61	3239
62	1121
63	201
64	19
65	1

[1, 1, 1, 1, 3, 1, 1, 5, 5, 1, 1, 7, 15, 7, 1, 1, 9, 31, 31, 9, 1, 1, 11, 53, 93, 53, 11, 1, 1, 13, 81, 213, 213, 81, 13, 1, 1, 15, 115, 411, 639, 411, 115, 15, 1, 1, 17, 155, 707, 1551, 1551, 707, 155, 17, 1, 1, 19, 201, 1121, 3239, 4653, 3239, 1121, 201, 19, 1]

cp's OEIS Frontend

A338934 Square array T(i,j) = Sum_{k=0...min(i,j)} C(i,k)C(j,k)C(2*k,k) (i>=0,j>=0), read by antidiagonals.

Table of values

List of values

cp's OEIS Frontend

A338934 Square array T(i,j) = Sum_{k=0...min(i,j)} C(i,k)*C(j,k)*C(2*k,k) (i>=0,j>=0), read by antidiagonals.

Table of values

List of values

A338934 Square array T(i,j) = Sum_{k=0...min(i,j)} C(i,k)C(j,k)C(2*k,k) (i>=0,j>=0), read by antidiagonals.