A274881 - cp's OEIS frontend

A274881 A statistic on orbital systems over n sectors: the number of orbitals which have an ascent of length k.

n	a(n)
0	1
1	1
2	0
3	2
4	0
5	6
6	0
7	3
8	3
9	0
10	18
11	12
12	0
13	4
14	12
15	4
16	0
17	40
18	80
19	20
20	0
21	5
22	40
23	20
24	5
25	0
26	75
27	375
28	150
29	30
30	0
31	6
32	120
33	90
34	30
35	6
36	0
37	126
38	1470
39	882
40	252
41	42
42	0
43	7
44	350
45	371
46	147
47	42
48	7
49	0
50	196
51	5292
52	4508
53	1568
54	392
55	56
56	0
57	8
58	1008
59	1456
60	672
61	224
62	56
63	8

[1, 1, 0, 2, 0, 6, 0, 3, 3, 0, 18, 12, 0, 4, 12, 4, 0, 40, 80, 20, 0, 5, 40, 20, 5, 0, 75, 375, 150, 30, 0, 6, 120, 90, 30, 6, 0, 126, 1470, 882, 252, 42, 0, 7, 350, 371, 147, 42, 7, 0, 196, 5292, 4508, 1568, 392, 56, 0, 8, 1008, 1456, 672, 224, 56, 8]

cp's OEIS Frontend

A274881 A statistic on orbital systems over n sectors: the number of orbitals which have an ascent of length k.

Table of values

List of values