A031366 - cp's OEIS frontend

A031366 Number of symmetrically inequivalent coincidence rotations of icosian ring of index n.

n	a(n)
1	1
2	0
3	0
4	25
5	36
6	0
7	0
8	0
9	100
10	0
11	288
12	0
13	0
14	0
15	0
16	440
17	0
18	0
19	800
20	900
21	0
22	0
23	0
24	0
25	960
26	0
27	0
28	0
29	1800
30	0
31	2048
32	0
33	0
34	0
35	0
36	2500
37	0
38	0
39	0
40	0
41	3528
42	0
43	0
44	7200
45	3600
46	0
47	0
48	0
49	2550
50	0
51	0
52	0
53	0
54	0
55	10368
56	0
57	0
58	0
59	7200
60	0
61	7688
62	0
63	0
64	7330
65	0
66	0
67	0
68	0
69	0
70	0
71	10368
72	0
73	0
74	0
75	0
76	20000
77	0
78	0
79	12800
80	15840
81	8362
82	0
83	0
84	0
85	0
86	0
87	0
88	0
89	16200
90	0
91	0
92	0
93	0
94	0
95	28800
96	0
97	0
98	0
99	28800
100	23899

[1, 0, 0, 25, 36, 0, 0, 0, 100, 0, 288, 0, 0, 0, 0, 440, 0, 0, 800, 900, 0, 0, 0, 0, 960, 0, 0, 0, 1800, 0, 2048, 0, 0, 0, 0, 2500, 0, 0, 0, 0, 3528, 0, 0, 7200, 3600, 0, 0, 0, 2550, 0, 0, 0, 0, 0, 10368, 0, 0, 0, 7200, 0, 7688, 0, 0, 7330, 0, 0, 0, 0, 0, 0, 10368, 0, 0, 0, 0, 20000, 0, 0, 12800, 15840, 8362, 0, 0, 0, 0, 0, 0, 0, 16200, 0, 0, 0, 0, 0, 28800, 0, 0, 0, 28800, 23899]

cp's OEIS Frontend

A031366 Number of symmetrically inequivalent coincidence rotations of icosian ring of index n.

Table of values

List of values