A280784 - cp's OEIS frontend

A280784 Triangle read by rows: numbers of nonintersecting circles with one of them marked.

n	a(n)
1	1
2	2
3	1
4	5
5	3
6	1
7	13
8	9
9	3
10	1
11	35
12	26
13	10
14	3
15	1
16	95
17	75
18	30
19	10
20	3
21	1
22	262
23	214
24	91
25	31
26	10
27	3
28	1
29	727
30	612
31	268
32	95
33	31
34	10
35	3
36	1
37	2033
38	1747
39	790
40	284
41	96
42	31
43	10
44	3
45	1
46	5714
47	4995
48	2308
49	848
50	288
51	96
52	31
53	10
54	3
55	1
56	16136
57	14294
58	6737
59	2506
60	864
61	289
62	96
63	31
64	10
65	3
66	1

[1, 2, 1, 5, 3, 1, 13, 9, 3, 1, 35, 26, 10, 3, 1, 95, 75, 30, 10, 3, 1, 262, 214, 91, 31, 10, 3, 1, 727, 612, 268, 95, 31, 10, 3, 1, 2033, 1747, 790, 284, 96, 31, 10, 3, 1, 5714, 4995, 2308, 848, 288, 96, 31, 10, 3, 1, 16136, 14294, 6737, 2506, 864, 289, 96, 31, 10, 3, 1]

cp's OEIS Frontend

A280784 Triangle read by rows: numbers of nonintersecting circles with one of them marked.

Table of values

List of values