A091467 - cp's OEIS frontend

A091467 Table (by antidiagonals) of unlabeled alternating octopuses with n black nodes and k white nodes.

n	a(n)
1	1
2	1
3	1
4	0
5	4
6	0
7	0
8	3
9	3
10	0
11	0
12	1
13	10
14	1
15	0
16	0
17	0
18	9
19	9
20	0
21	0
22	0
23	0
24	3
25	28
26	3
27	0
28	0
29	0
30	0
31	1
32	28
33	28
34	1
35	0
36	0
37	0
38	0
39	0
40	15
41	76
42	15
43	0
44	0
45	0
46	0
47	0
48	0
49	3
50	90
51	90
52	3
53	0
54	0
55	0
56	0
57	0
58	0
59	1
60	55
61	238
62	55
63	1
64	0
65	0
66	0
67	0
68	0
69	0
70	0
71	18
72	297
73	297
74	18
75	0
76	0
77	0
78	0
79	0
80	0
81	0
82	0
83	3
84	219
85	736
86	219
87	3
88	0
89	0
90	0
91	0
92	0

[1, 1, 1, 0, 4, 0, 0, 3, 3, 0, 0, 1, 10, 1, 0, 0, 0, 9, 9, 0, 0, 0, 0, 3, 28, 3, 0, 0, 0, 0, 1, 28, 28, 1, 0, 0, 0, 0, 0, 15, 76, 15, 0, 0, 0, 0, 0, 0, 3, 90, 90, 3, 0, 0, 0, 0, 0, 0, 1, 55, 238, 55, 1, 0, 0, 0, 0, 0, 0, 0, 18, 297, 297, 18, 0, 0, 0, 0, 0, 0, 0, 0, 3, 219, 736, 219, 3, 0, 0, 0, 0, 0]

cp's OEIS Frontend

A091467 Table (by antidiagonals) of unlabeled alternating octopuses with n black nodes and k white nodes.

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	0
5	4
6	0
7	0
8	3
9	3
10	0
11	0
12	1
13	10
14	1
15	0
16	0
17	0
18	9
19	9
20	0
21	0
22	0
23	0
24	3
25	28
26	3
27	0
28	0
29	0
30	0
31	1
32	28
33	28
34	1
35	0
36	0
37	0
38	0
39	0
40	15
41	76
42	15
43	0
44	0
45	0
46	0
47	0
48	0
49	3
50	90
51	90
52	3
53	0
54	0
55	0
56	0
57	0
58	0
59	1
60	55
61	238
62	55
63	1
64	0
65	0
66	0
67	0
68	0
69	0
70	0
71	18
72	297
73	297
74	18
75	0
76	0
77	0
78	0
79	0
80	0
81	0
82	0
83	3
84	219
85	736
86	219
87	3
88	0
89	0
90	0
91	0
92	0

n	a(n)
1	1
2	1
3	1
4	0
5	4
6	0
7	0
8	3
9	3
10	0
11	0
12	1
13	10
14	1
15	0
16	0
17	0
18	9
19	9
20	0
21	0
22	0
23	0
24	3
25	28
26	3
27	0
28	0
29	0
30	0
31	1
32	28
33	28
34	1
35	0
36	0
37	0
38	0
39	0
40	15
41	76
42	15
43	0
44	0
45	0
46	0
47	0
48	0
49	3
50	90
51	90
52	3
53	0
54	0
55	0
56	0
57	0
58	0
59	1
60	55
61	238
62	55
63	1
64	0
65	0
66	0
67	0
68	0
69	0
70	0
71	18
72	297
73	297
74	18
75	0
76	0
77	0
78	0
79	0
80	0
81	0
82	0
83	3
84	219
85	736
86	219
87	3
88	0
89	0
90	0
91	0
92	0

n	a(n)
1	1
2	1
3	1
4	0
5	4
6	0
7	0
8	3
9	3
10	0
11	0
12	1
13	10
14	1
15	0
16	0
17	0
18	9
19	9
20	0
21	0
22	0
23	0
24	3
25	28
26	3
27	0
28	0
29	0
30	0
31	1
32	28
33	28
34	1
35	0
36	0
37	0
38	0
39	0
40	15
41	76
42	15
43	0
44	0
45	0
46	0
47	0
48	0
49	3
50	90
51	90
52	3
53	0
54	0
55	0
56	0
57	0
58	0
59	1
60	55
61	238
62	55
63	1
64	0
65	0
66	0
67	0
68	0
69	0
70	0
71	18
72	297
73	297
74	18
75	0
76	0
77	0
78	0
79	0
80	0
81	0
82	0
83	3
84	219
85	736
86	219
87	3
88	0
89	0
90	0
91	0
92	0