A338217 - cp's OEIS frontend

A338217 Triangle read by rows: T(n,k) is the coefficient of (1+x)^k in the ZZ polynomial of the hexagonal graphene flake O(3,3,n).

n	a(n)
1	1
2	9
3	9
4	1
5	1
6	18
7	63
8	68
9	23
10	2
11	1
12	27
13	162
14	350
15	310
16	114
17	15
18	1
19	1
20	36
21	306
22	996
23	1446
24	984
25	303
26	42
27	2
28	1
29	45
30	495
31	2155
32	4360
33	4360
34	2141
35	505
36	49
37	1
38	1
39	54
40	729
41	3976
42	10325
43	13650
44	9233
45	3124
46	468
47	20
48	1
49	63
50	1008
51	6608
52	20958
53	34482
54	29750
55	13170
56	2685
57	175
58	1
59	72
60	1332
61	10200
62	38220
63	75264
64	79002
65	43284
66	11190
67	980

[1, 9, 9, 1, 1, 18, 63, 68, 23, 2, 1, 27, 162, 350, 310, 114, 15, 1, 1, 36, 306, 996, 1446, 984, 303, 42, 2, 1, 45, 495, 2155, 4360, 4360, 2141, 505, 49, 1, 1, 54, 729, 3976, 10325, 13650, 9233, 3124, 468, 20, 1, 63, 1008, 6608, 20958, 34482, 29750, 13170, 2685, 175, 1, 72, 1332, 10200, 38220, 75264, 79002, 43284, 11190, 980]

cp's OEIS Frontend

A338217 Triangle read by rows: T(n,k) is the coefficient of (1+x)^k in the ZZ polynomial of the hexagonal graphene flake O(3,3,n).

Table of values

List of values