A136451 - cp's OEIS frontend

A136451 Triangle T(n,k) with the coefficient [x^k] of the characteristic polynomial of the following n X n matrix: 2 on the main antidiagonal, -1 on the adjacent sub-antidiagonals and 0 otherwise.

n	a(n)
0	1
1	2
2	-1
3	-3
4	2
5	1
6	-4
7	6
8	2
9	-1
10	5
11	-10
12	-9
13	2
14	1
15	6
16	-19
17	-16
18	12
19	2
20	-1
21	-7
22	28
23	42
24	-22
25	-15
26	2
27	1
28	-8
29	44
30	68
31	-74
32	-28
33	18
34	2
35	-1
36	9
37	-60
38	-138
39	126
40	115
41	-34
42	-21
43	2
44	1
45	10
46	-85
47	-208
48	316
49	202
50	-165
51	-40
52	24
53	2
54	-1
55	-11
56	110
57	363
58	-506
59	-605
60	296
61	224
62	-46
63	-27
64	2
65	1

[1, 2, -1, -3, 2, 1, -4, 6, 2, -1, 5, -10, -9, 2, 1, 6, -19, -16, 12, 2, -1, -7, 28, 42, -22, -15, 2, 1, -8, 44, 68, -74, -28, 18, 2, -1, 9, -60, -138, 126, 115, -34, -21, 2, 1, 10, -85, -208, 316, 202, -165, -40, 24, 2, -1, -11, 110, 363, -506, -605, 296, 224, -46, -27, 2, 1]

cp's OEIS Frontend

A136451 Triangle T(n,k) with the coefficient [x^k] of the characteristic polynomial of the following n X n matrix: 2 on the main antidiagonal, -1 on the adjacent sub-antidiagonals and 0 otherwise.

Table of values

List of values