A140882 - cp's OEIS frontend

A140882 Triangle by rows with row n formed by coefficients of the characteristic polynomial of the n X n tridiagonal matrix with m_{i,i} = 2 for i=1..n, m_{i,i-1} = m_{i,i+1} = -1 for i=2..n-1, and m_{1,2} = m_{n,n-1} = -2.

n	a(n)
0	1
1	2
2	-1
3	0
4	-4
5	1
6	0
7	-8
8	6
9	-1
10	0
11	-12
12	19
13	-8
14	1
15	0
16	-16
17	44
18	-34
19	10
20	-1
21	0
22	-20
23	85
24	-104
25	53
26	-12
27	1
28	0
29	-24
30	146
31	-259
32	200
33	-76
34	14
35	-1
36	0
37	-28
38	231
39	-560
40	606
41	-340
42	103
43	-16
44	1
45	0
46	-32
47	344
48	-1092
49	1572
50	-1210
51	532
52	-134
53	18
54	-1
55	0
56	-36
57	489
58	-1968
59	3630
60	-3652
61	2171
62	-784
63	169
64	-20
65	1

[1, 2, -1, 0, -4, 1, 0, -8, 6, -1, 0, -12, 19, -8, 1, 0, -16, 44, -34, 10, -1, 0, -20, 85, -104, 53, -12, 1, 0, -24, 146, -259, 200, -76, 14, -1, 0, -28, 231, -560, 606, -340, 103, -16, 1, 0, -32, 344, -1092, 1572, -1210, 532, -134, 18, -1, 0, -36, 489, -1968, 3630, -3652, 2171, -784, 169, -20, 1]

cp's OEIS Frontend

A140882 Triangle by rows with row n formed by coefficients of the characteristic polynomial of the n X n tridiagonal matrix with m_{i,i} = 2 for i=1..n, m_{i,i-1} = m_{i,i+1} = -1 for i=2..n-1, and m_{1,2} = m_{n,n-1} = -2.

Table of values

List of values