A350365 - cp's OEIS frontend

A350365 Array read by antidiagonals: T(n,k) is the number of sequences of length 2*n+1 with terms in 0..k such that the Hankel matrix of the sequence is singular, but the Hankel matrix of any proper subsequence with an odd number of consecutive terms is invertible, n, k >= 0.

n	a(n)
0	1
1	1
2	0
3	1
4	1
5	0
6	1
7	2
8	0
9	0
10	1
11	3
12	2
13	0
14	0
15	1
16	6
17	6
18	10
19	0
20	0
21	1
22	7
23	16
24	52
25	0
26	0
27	0
28	1
29	8
30	36
31	148
32	116
33	8
34	0
35	0
36	1
37	9
38	58
39	448
40	644
41	528
42	12
43	0
44	0
45	1
46	12
47	82
48	885
49	2932
50	4032
51	1326
52	0
53	0
54	0

[1, 1, 0, 1, 1, 0, 1, 2, 0, 0, 1, 3, 2, 0, 0, 1, 6, 6, 10, 0, 0, 1, 7, 16, 52, 0, 0, 0, 1, 8, 36, 148, 116, 8, 0, 0, 1, 9, 58, 448, 644, 528, 12, 0, 0, 1, 12, 82, 885, 2932, 4032, 1326, 0, 0, 0]

cp's OEIS Frontend

A350365 Array read by antidiagonals: T(n,k) is the number of sequences of length 2*n+1 with terms in 0..k such that the Hankel matrix of the sequence is singular, but the Hankel matrix of any proper subsequence with an odd number of consecutive terms is invertible, n, k >= 0.

Table of values

List of values