A085459 - cp's OEIS frontend

A085459 Numbers k such that k-th cyclotomic polynomial has exactly 3 positive coefficients.

n	a(n)
1	3
2	9
3	10
4	20
5	27
6	40
7	50
8	80
9	81
10	100
11	160
12	200
13	243
14	250
15	320
16	400
17	500
18	640
19	729
20	800
21	1000
22	1250
23	1280
24	1600
25	2000
26	2187
27	2500
28	2560
29	3200
30	4000
31	5000
32	5120
33	6250
34	6400
35	6561
36	8000
37	10000
38	10240
39	12500
40	12800
41	16000
42	19683
43	20000
44	20480
45	25000
46	25600

[3, 9, 10, 20, 27, 40, 50, 80, 81, 100, 160, 200, 243, 250, 320, 400, 500, 640, 729, 800, 1000, 1250, 1280, 1600, 2000, 2187, 2500, 2560, 3200, 4000, 5000, 5120, 6250, 6400, 6561, 8000, 10000, 10240, 12500, 12800, 16000, 19683, 20000, 20480, 25000, 25600]

cp's OEIS Frontend

A085459 Numbers k such that k-th cyclotomic polynomial has exactly 3 positive coefficients.

Table of values

List of values