A331144 - cp's OEIS frontend

A331144 Irregular triangle read by rows: row n gives coefficients (in increasing order of powers of x) of normalized numerator polynomial of generating function for hexagonal net (honeycomb) directed site animals. Here n is the number of sites supported in one particular way.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	2
7	4
8	2
9	0
10	1
11	1
12	3
13	4
14	10
15	12
16	14
17	16
18	13
19	14
20	7
21	6
22	4
23	0
24	1
25	1
26	4
27	8
28	22
29	37
30	56
31	88
32	98
33	137
34	118
35	145
36	113
37	104
38	79
39	50
40	40
41	17
42	10
43	6
44	0
45	1

[1, 1, 1, 1, 1, 1, 2, 4, 2, 0, 1, 1, 3, 4, 10, 12, 14, 16, 13, 14, 7, 6, 4, 0, 1, 1, 4, 8, 22, 37, 56, 88, 98, 137, 118, 145, 113, 104, 79, 50, 40, 17, 10, 6, 0, 1]

cp's OEIS Frontend

A331144 Irregular triangle read by rows: row n gives coefficients (in increasing order of powers of x) of normalized numerator polynomial of generating function for hexagonal net (honeycomb) directed site animals. Here n is the number of sites supported in one particular way.

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	2
7	4
8	2
9	0
10	1
11	1
12	3
13	4
14	10
15	12
16	14
17	16
18	13
19	14
20	7
21	6
22	4
23	0
24	1
25	1
26	4
27	8
28	22
29	37
30	56
31	88
32	98
33	137
34	118
35	145
36	113
37	104
38	79
39	50
40	40
41	17
42	10
43	6
44	0
45	1

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	2
7	4
8	2
9	0
10	1
11	1
12	3
13	4
14	10
15	12
16	14
17	16
18	13
19	14
20	7
21	6
22	4
23	0
24	1
25	1
26	4
27	8
28	22
29	37
30	56
31	88
32	98
33	137
34	118
35	145
36	113
37	104
38	79
39	50
40	40
41	17
42	10
43	6
44	0
45	1

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	2
7	4
8	2
9	0
10	1
11	1
12	3
13	4
14	10
15	12
16	14
17	16
18	13
19	14
20	7
21	6
22	4
23	0
24	1
25	1
26	4
27	8
28	22
29	37
30	56
31	88
32	98
33	137
34	118
35	145
36	113
37	104
38	79
39	50
40	40
41	17
42	10
43	6
44	0
45	1