A204170 - cp's OEIS frontend

A204170 Array read by rows: row n lists the coefficients of the characteristic polynomial of the n-th principal submatrix of (i*j), as in A003991.

n	a(n)
1	1
2	-1
3	0
4	-5
5	1
6	0
7	0
8	14
9	-1
10	0
11	0
12	0
13	-30
14	1
15	0
16	0
17	0
18	0
19	55
20	-1
21	0
22	0
23	0
24	0
25	0
26	-91
27	1
28	0
29	0
30	0
31	0
32	0
33	0
34	140
35	-1
36	0
37	0
38	0
39	0
40	0
41	0
42	0
43	-204
44	1
45	0
46	0
47	0
48	0
49	0
50	0
51	0
52	0
53	285
54	-1
55	0
56	0
57	0
58	0
59	0
60	0
61	0
62	0
63	0
64	-385
65	1
66	0
67	0
68	0
69	0
70	0
71	0
72	0
73	0
74	0
75	0
76	506
77	-1

[1, -1, 0, -5, 1, 0, 0, 14, -1, 0, 0, 0, -30, 1, 0, 0, 0, 0, 55, -1, 0, 0, 0, 0, 0, -91, 1, 0, 0, 0, 0, 0, 0, 140, -1, 0, 0, 0, 0, 0, 0, 0, -204, 1, 0, 0, 0, 0, 0, 0, 0, 0, 285, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, -385, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 506, -1]

cp's OEIS Frontend

A204170 Array read by rows: row n lists the coefficients of the characteristic polynomial of the n-th principal submatrix of (i*j), as in A003991.

Table of values

List of values