A260638 - cp's OEIS frontend

A260638 Irregular table: list of symmetric n X n matrices made from 2-binomial coefficients, read by rows, where the k-th row of any n X n matrix is filled with binomial coefficients [k-1,k-1]..[k+n-2,k-1] (for q=2).

n	a(n)
1	1
2	1
3	1
4	1
5	3
6	1
7	1
8	1
9	1
10	3
11	7
12	1
13	7
14	35
15	1
16	1
17	1
18	1
19	1
20	3
21	7
22	15
23	1
24	7
25	35
26	155
27	1
28	15
29	155
30	1395
31	1
32	1
33	1
34	1
35	1
36	1
37	3
38	7
39	15
40	31
41	1
42	7
43	35
44	155
45	651
46	1
47	15
48	155
49	1395
50	11811
51	1
52	31
53	651
54	11811
55	200787
56	1
57	1
58	1
59	1
60	1
61	1
62	1
63	3
64	7
65	15
66	31
67	63
68	1
69	7
70	35
71	155

[1, 1, 1, 1, 3, 1, 1, 1, 1, 3, 7, 1, 7, 35, 1, 1, 1, 1, 1, 3, 7, 15, 1, 7, 35, 155, 1, 15, 155, 1395, 1, 1, 1, 1, 1, 1, 3, 7, 15, 31, 1, 7, 35, 155, 651, 1, 15, 155, 1395, 11811, 1, 31, 651, 11811, 200787, 1, 1, 1, 1, 1, 1, 1, 3, 7, 15, 31, 63, 1, 7, 35, 155]

cp's OEIS Frontend

A260638 Irregular table: list of symmetric n X n matrices made from 2-binomial coefficients, read by rows, where the k-th row of any n X n matrix is filled with binomial coefficients [k-1,k-1]..[k+n-2,k-1] (for q=2).

Table of values

List of values