A351357 - cp's OEIS frontend

A351357 Irregular triangle read by rows T(n,k): number of binary necklaces with n beads, k of them black, and at least three consecutive black beads.

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	1
10	0
11	0
12	0
13	1
14	1
15	0
16	0
17	0
18	1
19	1
20	1
21	0
22	0
23	0
24	1
25	2
26	1
27	1
28	0
29	0
30	0
31	1
32	3
33	3
34	1
35	1
36	0
37	0
38	0
39	1
40	4
41	6
42	4
43	1
44	1
45	0
46	0
47	0
48	1
49	5
50	10
51	9
52	4
53	1
54	1
55	0
56	0
57	0
58	1
59	6
60	15
61	19
62	12
63	5
64	1
65	1
66	0
67	0
68	0
69	1
70	7
71	21
72	33
73	29
74	15
75	5
76	1
77	1
78	0
79	0
80	0
81	1
82	8
83	28
84	54
85	60
86	42
87	19
88	6
89	1
90	1
91	0
92	0
93	0
94	1
95	9
96	36
97	81
98	111
99	96
100	55
101	22
102	6
103	1
104	1

[0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 2, 1, 1, 0, 0, 0, 1, 3, 3, 1, 1, 0, 0, 0, 1, 4, 6, 4, 1, 1, 0, 0, 0, 1, 5, 10, 9, 4, 1, 1, 0, 0, 0, 1, 6, 15, 19, 12, 5, 1, 1, 0, 0, 0, 1, 7, 21, 33, 29, 15, 5, 1, 1, 0, 0, 0, 1, 8, 28, 54, 60, 42, 19, 6, 1, 1, 0, 0, 0, 1, 9, 36, 81, 111, 96, 55, 22, 6, 1, 1]

cp's OEIS Frontend

A351357 Irregular triangle read by rows T(n,k): number of binary necklaces with n beads, k of them black, and at least three consecutive black beads.

Table of values

List of values

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	1
10	0
11	0
12	0
13	1
14	1
15	0
16	0
17	0
18	1
19	1
20	1
21	0
22	0
23	0
24	1
25	2
26	1
27	1
28	0
29	0
30	0
31	1
32	3
33	3
34	1
35	1
36	0
37	0
38	0
39	1
40	4
41	6
42	4
43	1
44	1
45	0
46	0
47	0
48	1
49	5
50	10
51	9
52	4
53	1
54	1
55	0
56	0
57	0
58	1
59	6
60	15
61	19
62	12
63	5
64	1
65	1
66	0
67	0
68	0
69	1
70	7
71	21
72	33
73	29
74	15
75	5
76	1
77	1
78	0
79	0
80	0
81	1
82	8
83	28
84	54
85	60
86	42
87	19
88	6
89	1
90	1
91	0
92	0
93	0
94	1
95	9
96	36
97	81
98	111
99	96
100	55
101	22
102	6
103	1
104	1

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	1
10	0
11	0
12	0
13	1
14	1
15	0
16	0
17	0
18	1
19	1
20	1
21	0
22	0
23	0
24	1
25	2
26	1
27	1
28	0
29	0
30	0
31	1
32	3
33	3
34	1
35	1
36	0
37	0
38	0
39	1
40	4
41	6
42	4
43	1
44	1
45	0
46	0
47	0
48	1
49	5
50	10
51	9
52	4
53	1
54	1
55	0
56	0
57	0
58	1
59	6
60	15
61	19
62	12
63	5
64	1
65	1
66	0
67	0
68	0
69	1
70	7
71	21
72	33
73	29
74	15
75	5
76	1
77	1
78	0
79	0
80	0
81	1
82	8
83	28
84	54
85	60
86	42
87	19
88	6
89	1
90	1
91	0
92	0
93	0
94	1
95	9
96	36
97	81
98	111
99	96
100	55
101	22
102	6
103	1
104	1

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	1
10	0
11	0
12	0
13	1
14	1
15	0
16	0
17	0
18	1
19	1
20	1
21	0
22	0
23	0
24	1
25	2
26	1
27	1
28	0
29	0
30	0
31	1
32	3
33	3
34	1
35	1
36	0
37	0
38	0
39	1
40	4
41	6
42	4
43	1
44	1
45	0
46	0
47	0
48	1
49	5
50	10
51	9
52	4
53	1
54	1
55	0
56	0
57	0
58	1
59	6
60	15
61	19
62	12
63	5
64	1
65	1
66	0
67	0
68	0
69	1
70	7
71	21
72	33
73	29
74	15
75	5
76	1
77	1
78	0
79	0
80	0
81	1
82	8
83	28
84	54
85	60
86	42
87	19
88	6
89	1
90	1
91	0
92	0
93	0
94	1
95	9
96	36
97	81
98	111
99	96
100	55
101	22
102	6
103	1
104	1