A382670 - cp's OEIS frontend

A382670 Numbers k such that a regular k-gon (k>=3) can be constructed with a compass, straightedge and an angle quinsector.

n	a(n)
1	3
2	4
3	5
4	6
5	8
6	10
7	11
8	12
9	15
10	16
11	17
12	20
13	22
14	24
15	25
16	30
17	32
18	33
19	34
20	40
21	41
22	44
23	48
24	50
25	51
26	55
27	60
28	64
29	66
30	68
31	75
32	80
33	82
34	85
35	88
36	96
37	100
38	101
39	102
40	110
41	120
42	123
43	125
44	128
45	132
46	136
47	150
48	160
49	164
50	165
51	170
52	176
53	187
54	192
55	200
56	202
57	204
58	205
59	220
60	240

[3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 17, 20, 22, 24, 25, 30, 32, 33, 34, 40, 41, 44, 48, 50, 51, 55, 60, 64, 66, 68, 75, 80, 82, 85, 88, 96, 100, 101, 102, 110, 120, 123, 125, 128, 132, 136, 150, 160, 164, 165, 170, 176, 187, 192, 200, 202, 204, 205, 220, 240]

cp's OEIS Frontend

A382670 Numbers k such that a regular k-gon (k>=3) can be constructed with a compass, straightedge and an angle quinsector.

Table of values

List of values

n	a(n)
1	3
2	4
3	5
4	6
5	8
6	10
7	11
8	12
9	15
10	16
11	17
12	20
13	22
14	24
15	25
16	30
17	32
18	33
19	34
20	40
21	41
22	44
23	48
24	50
25	51
26	55
27	60
28	64
29	66
30	68
31	75
32	80
33	82
34	85
35	88
36	96
37	100
38	101
39	102
40	110
41	120
42	123
43	125
44	128
45	132
46	136
47	150
48	160
49	164
50	165
51	170
52	176
53	187
54	192
55	200
56	202
57	204
58	205
59	220
60	240

n	a(n)
1	3
2	4
3	5
4	6
5	8
6	10
7	11
8	12
9	15
10	16
11	17
12	20
13	22
14	24
15	25
16	30
17	32
18	33
19	34
20	40
21	41
22	44
23	48
24	50
25	51
26	55
27	60
28	64
29	66
30	68
31	75
32	80
33	82
34	85
35	88
36	96
37	100
38	101
39	102
40	110
41	120
42	123
43	125
44	128
45	132
46	136
47	150
48	160
49	164
50	165
51	170
52	176
53	187
54	192
55	200
56	202
57	204
58	205
59	220
60	240

n	a(n)
1	3
2	4
3	5
4	6
5	8
6	10
7	11
8	12
9	15
10	16
11	17
12	20
13	22
14	24
15	25
16	30
17	32
18	33
19	34
20	40
21	41
22	44
23	48
24	50
25	51
26	55
27	60
28	64
29	66
30	68
31	75
32	80
33	82
34	85
35	88
36	96
37	100
38	101
39	102
40	110
41	120
42	123
43	125
44	128
45	132
46	136
47	150
48	160
49	164
50	165
51	170
52	176
53	187
54	192
55	200
56	202
57	204
58	205
59	220
60	240