A157608 - cp's OEIS frontend

A157608 Array read by antidiagonals, giving number of fixed hexagonal polyominoes of height up to n/2 and with hexagonal cell count k.

n	a(n)
1	0
2	1
3	0
4	1
5	0
6	0
7	1
8	2
9	0
10	0
11	1
12	3
13	2
14	0
15	0
16	1
17	3
18	6
19	2
20	0
21	0
22	1
23	3
24	10
25	11
26	2
27	0
28	0
29	1
30	3
31	11
32	25
33	19
34	2
35	0
36	0
37	1
38	3
39	11
40	37
41	61
42	32
43	2
44	0
45	0
46	1
47	3
48	11
49	43
50	111
51	142
52	53
53	2
54	0
55	0
56	1
57	3
58	11
59	44
60	153
61	320
62	323
63	87
64	2
65	0
66	0
67	1
68	3
69	11
70	44
71	177
72	514
73	896
74	723
75	142
76	2
77	0
78	0

[0, 1, 0, 1, 0, 0, 1, 2, 0, 0, 1, 3, 2, 0, 0, 1, 3, 6, 2, 0, 0, 1, 3, 10, 11, 2, 0, 0, 1, 3, 11, 25, 19, 2, 0, 0, 1, 3, 11, 37, 61, 32, 2, 0, 0, 1, 3, 11, 43, 111, 142, 53, 2, 0, 0, 1, 3, 11, 44, 153, 320, 323, 87, 2, 0, 0, 1, 3, 11, 44, 177, 514, 896, 723, 142, 2, 0, 0]

cp's OEIS Frontend

A157608 Array read by antidiagonals, giving number of fixed hexagonal polyominoes of height up to n/2 and with hexagonal cell count k.

Table of values

List of values

n	a(n)
1	0
2	1
3	0
4	1
5	0
6	0
7	1
8	2
9	0
10	0
11	1
12	3
13	2
14	0
15	0
16	1
17	3
18	6
19	2
20	0
21	0
22	1
23	3
24	10
25	11
26	2
27	0
28	0
29	1
30	3
31	11
32	25
33	19
34	2
35	0
36	0
37	1
38	3
39	11
40	37
41	61
42	32
43	2
44	0
45	0
46	1
47	3
48	11
49	43
50	111
51	142
52	53
53	2
54	0
55	0
56	1
57	3
58	11
59	44
60	153
61	320
62	323
63	87
64	2
65	0
66	0
67	1
68	3
69	11
70	44
71	177
72	514
73	896
74	723
75	142
76	2
77	0
78	0

n	a(n)
1	0
2	1
3	0
4	1
5	0
6	0
7	1
8	2
9	0
10	0
11	1
12	3
13	2
14	0
15	0
16	1
17	3
18	6
19	2
20	0
21	0
22	1
23	3
24	10
25	11
26	2
27	0
28	0
29	1
30	3
31	11
32	25
33	19
34	2
35	0
36	0
37	1
38	3
39	11
40	37
41	61
42	32
43	2
44	0
45	0
46	1
47	3
48	11
49	43
50	111
51	142
52	53
53	2
54	0
55	0
56	1
57	3
58	11
59	44
60	153
61	320
62	323
63	87
64	2
65	0
66	0
67	1
68	3
69	11
70	44
71	177
72	514
73	896
74	723
75	142
76	2
77	0
78	0

n	a(n)
1	0
2	1
3	0
4	1
5	0
6	0
7	1
8	2
9	0
10	0
11	1
12	3
13	2
14	0
15	0
16	1
17	3
18	6
19	2
20	0
21	0
22	1
23	3
24	10
25	11
26	2
27	0
28	0
29	1
30	3
31	11
32	25
33	19
34	2
35	0
36	0
37	1
38	3
39	11
40	37
41	61
42	32
43	2
44	0
45	0
46	1
47	3
48	11
49	43
50	111
51	142
52	53
53	2
54	0
55	0
56	1
57	3
58	11
59	44
60	153
61	320
62	323
63	87
64	2
65	0
66	0
67	1
68	3
69	11
70	44
71	177
72	514
73	896
74	723
75	142
76	2
77	0
78	0