A136678 - cp's OEIS frontend

A136678 Triangle read by rows: n-th row (n>=0) gives coefficients of characteristic polynomial of n X n generalized Cartan matrix M defined in Comments.

n	a(n)
0	1
1	2
2	-1
3	2
4	-4
5	1
6	2
7	-9
8	6
9	-1
10	1
11	-16
12	20
13	-8
14	1
15	0
16	-24
17	50
18	-35
19	10
20	-1
21	-2
22	-32
23	104
24	-112
25	54
26	-12
27	1
28	-4
29	-38
30	190
31	-293
32	210
33	-77
34	14
35	-1
36	-7
37	-40
38	314
39	-664
40	659
41	-352
42	104
43	-16
44	1
45	-10
46	-35
47	478
48	-1349
49	1772
50	-1286
51	546
52	-135
53	18
54	-1
55	-14
56	-20
57	677
58	-2512
59	4234
60	-3992
61	2274
62	-800
63	170
64	-20
65	1

[1, 2, -1, 2, -4, 1, 2, -9, 6, -1, 1, -16, 20, -8, 1, 0, -24, 50, -35, 10, -1, -2, -32, 104, -112, 54, -12, 1, -4, -38, 190, -293, 210, -77, 14, -1, -7, -40, 314, -664, 659, -352, 104, -16, 1, -10, -35, 478, -1349, 1772, -1286, 546, -135, 18, -1, -14, -20, 677, -2512, 4234, -3992, 2274, -800, 170, -20, 1]

cp's OEIS Frontend

A136678 Triangle read by rows: n-th row (n>=0) gives coefficients of characteristic polynomial of n X n generalized Cartan matrix M defined in Comments.

Table of values

List of values