A212220 - cp's OEIS frontend

A212220 Triangle T(n,k), n>=0, 0<=k<=3n, read by rows: row n gives the coefficients of the chromatic polynomial of the complete tripartite graph K_(n,n,n), highest powers first.

n	a(n)
0	1
1	1
2	-3
3	2
4	0
5	1
6	-12
7	58
8	-137
9	154
10	-64
11	0
12	1
13	-27
14	324
15	-2223
16	9414
17	-24879
18	39528
19	-33966
20	11828
21	0
22	1
23	-48
24	1064
25	-14244
26	126936
27	-784788
28	3409590
29	-10329081
30	21197804
31	-27779384
32	20648794
33	-6476644
34	0
35	1
36	-75
37	2650
38	-58100
39	878200
40	-9632440
41	78681510

[1, 1, -3, 2, 0, 1, -12, 58, -137, 154, -64, 0, 1, -27, 324, -2223, 9414, -24879, 39528, -33966, 11828, 0, 1, -48, 1064, -14244, 126936, -784788, 3409590, -10329081, 21197804, -27779384, 20648794, -6476644, 0, 1, -75, 2650, -58100, 878200, -9632440, 78681510]

cp's OEIS Frontend

A212220 Triangle T(n,k), n>=0, 0<=k<=3n, read by rows: row n gives the coefficients of the chromatic polynomial of the complete tripartite graph K_(n,n,n), highest powers first.

Table of values

List of values