A123967 - cp's OEIS frontend

A123967 Triangle read by rows: T(0,0)=1; for n >= 1 T(n,k) is the coefficient of x^k in the monic characteristic polynomial of the tridiagonal n X n matrix with main diagonal 5,5,5,... and sub- and superdiagonals 1,1,1,... (0 <= k <= n).

n	a(n)
0	1
1	-5
2	1
3	24
4	-10
5	1
6	-115
7	73
8	-15
9	1
10	551
11	-470
12	147
13	-20
14	1
15	-2640
16	2828
17	-1190
18	246
19	-25
20	1
21	12649
22	-16310
23	8631
24	-2400
25	370
26	-30
27	1
28	-60605
29	91371
30	-58275
31	20385
32	-4225
33	519
34	-35
35	1
36	290376
37	-501150
38	374115
39	-157800
40	41140
41	-6790
42	693
43	-40
44	1
45	-1391275
46	2704755
47	-2313450
48	1142730
49	-359275
50	74571
51	-10220
52	892
53	-45
54	1

[1, -5, 1, 24, -10, 1, -115, 73, -15, 1, 551, -470, 147, -20, 1, -2640, 2828, -1190, 246, -25, 1, 12649, -16310, 8631, -2400, 370, -30, 1, -60605, 91371, -58275, 20385, -4225, 519, -35, 1, 290376, -501150, 374115, -157800, 41140, -6790, 693, -40, 1, -1391275, 2704755, -2313450, 1142730, -359275, 74571, -10220, 892, -45, 1]

cp's OEIS Frontend

A123967 Triangle read by rows: T(0,0)=1; for n >= 1 T(n,k) is the coefficient of x^k in the monic characteristic polynomial of the tridiagonal n X n matrix with main diagonal 5,5,5,... and sub- and superdiagonals 1,1,1,... (0 <= k <= n).

Table of values

List of values