A137396 - cp's OEIS frontend

A137396 Triangle read by rows: row n gives the coefficients in the expansion of the chromatic polynomial of the n-cycle graphs.

n	a(n)
1	0
2	0
3	-1
4	1
5	0
6	2
7	-3
8	1
9	0
10	-3
11	6
12	-4
13	1
14	0
15	4
16	-10
17	10
18	-5
19	1
20	0
21	-5
22	15
23	-20
24	15
25	-6
26	1
27	0
28	6
29	-21
30	35
31	-35
32	21
33	-7
34	1
35	0
36	-7
37	28
38	-56
39	70
40	-56
41	28
42	-8
43	1
44	0
45	8
46	-36
47	84
48	-126
49	126
50	-84
51	36
52	-9
53	1
54	0
55	-9
56	45
57	-120
58	210
59	-252
60	210
61	-120
62	45
63	-10
64	1
65	0
66	10

[0, 0, -1, 1, 0, 2, -3, 1, 0, -3, 6, -4, 1, 0, 4, -10, 10, -5, 1, 0, -5, 15, -20, 15, -6, 1, 0, 6, -21, 35, -35, 21, -7, 1, 0, -7, 28, -56, 70, -56, 28, -8, 1, 0, 8, -36, 84, -126, 126, -84, 36, -9, 1, 0, -9, 45, -120, 210, -252, 210, -120, 45, -10, 1, 0, 10]

cp's OEIS Frontend

A137396 Triangle read by rows: row n gives the coefficients in the expansion of the chromatic polynomial of the n-cycle graphs.

Table of values

List of values