A338259 - cp's OEIS frontend

A338259 Triangle read by rows: T(n,k) is the coefficient of (1+x)^k in the ZZ polynomial of the hexagonal graphene flake O(3,4,n).

n	a(n)
1	1
2	12
3	18
4	41
5	24
6	120
7	200
8	120
9	24
10	11
11	36
12	306
13	996
14	1446
15	984
16	303
17	42
18	21
19	48
20	576
21	2800
22	6525
23	7848
24	4957
25	1644
26	274
27	22
28	11
29	60
30	930
31	6020
32	19365
33	33600
34	32487
35	17694
36	5336
37	858
38	71
39	21
40	72
41	1368
42	11064
43	45435
44	103200
45	134806
46	102912
47	45567
48	11358
49	1510
50	86
51	1

[1, 12, 18, 41, 24, 120, 200, 120, 24, 11, 36, 306, 996, 1446, 984, 303, 42, 21, 48, 576, 2800, 6525, 7848, 4957, 1644, 274, 22, 11, 60, 930, 6020, 19365, 33600, 32487, 17694, 5336, 858, 71, 21, 72, 1368, 11064, 45435, 103200, 134806, 102912, 45567, 11358, 1510, 86, 1]

cp's OEIS Frontend

A338259 Triangle read by rows: T(n,k) is the coefficient of (1+x)^k in the ZZ polynomial of the hexagonal graphene flake O(3,4,n).

Table of values

List of values