A345209 - cp's OEIS frontend

A345209 Number of Petrie polygons on the regular triangular map corresponding to the principal congruence subgroup Gamma(n) of the modular group.

n	a(n)
1	1
2	1
3	3
4	4
5	6
6	6
7	21
8	16
9	27
10	12
11	66
12	24
13	78
14	42
15	36
16	64
17	136
18	162
19	190
20	48
21	252
22	132
23	253
24	192
25	150
26	156
27	243
28	168
29	870
30	72
31	496
32	256
33	396
34	816
35	252
36	648
37	666
38	1140
39	468
40	384
41	1722
42	504
43	903
44	1056
45	324
46	1518
47	3243
48	1536
49	1029
50	300
51	816
52	624
53	1378
54	1458
55	3960
56	1344
57	1140
58	1740
59	1770
60	576

[1, 1, 3, 4, 6, 6, 21, 16, 27, 12, 66, 24, 78, 42, 36, 64, 136, 162, 190, 48, 252, 132, 253, 192, 150, 156, 243, 168, 870, 72, 496, 256, 396, 816, 252, 648, 666, 1140, 468, 384, 1722, 504, 903, 1056, 324, 1518, 3243, 1536, 1029, 300, 816, 624, 1378, 1458, 3960, 1344, 1140, 1740, 1770, 576]

cp's OEIS Frontend

A345209 Number of Petrie polygons on the regular triangular map corresponding to the principal congruence subgroup Gamma(n) of the modular group.

Table of values

List of values