A120650 - cp's OEIS frontend

A120650 Triangle read by rows: numbers of isomers of unbranched a-4-catapolynonagons.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	3
7	4
8	4
9	1
10	12
11	21
12	19
13	4
14	1
15	63
16	138
17	123
18	40
19	7
20	1
21	342
22	864
23	834
24	330
25	73
26	7
27	1
28	1998
29	5526
30	5796
31	2814
32	747
33	112
34	10
35	1
36	11772
37	34992
38	40014
39	22464
40	7218
41	1359
42	163
43	10
44	1
45	70308
46	221724
47	274590
48	174798
49	65583
50	15372
51	2307
52	220
53	13
54	1
55	420552
56	1399680
57	1867320
58	1321920
59	567540
60	157284
61	29100
62	3540
63	289
64	13
65	1

[1, 1, 1, 1, 1, 1, 3, 4, 4, 1, 12, 21, 19, 4, 1, 63, 138, 123, 40, 7, 1, 342, 864, 834, 330, 73, 7, 1, 1998, 5526, 5796, 2814, 747, 112, 10, 1, 11772, 34992, 40014, 22464, 7218, 1359, 163, 10, 1, 70308, 221724, 274590, 174798, 65583, 15372, 2307, 220, 13, 1, 420552, 1399680, 1867320, 1321920, 567540, 157284, 29100, 3540, 289, 13, 1]

cp's OEIS Frontend

A120650 Triangle read by rows: numbers of isomers of unbranched a-4-catapolynonagons.

Table of values

List of values