A348659 - cp's OEIS frontend

A348659 Numbers whose numerator and denominator of the harmonic mean of their divisors are both prime numbers.

n	a(n)
1	3
2	5
3	13
4	14
5	15
6	37
7	42
8	61
9	66
10	73
11	92
12	114
13	157
14	182
15	193
16	258
17	277
18	308
19	313
20	397
21	402
22	421
23	457
24	476
25	477
26	541
27	546
28	570
29	613
30	661
31	673
32	733
33	744
34	757
35	812
36	877
37	978
38	997
39	1093
40	1148
41	1153
42	1201
43	1213
44	1237
45	1266
46	1278
47	1321
48	1381
49	1428
50	1453
51	1621
52	1657

[3, 5, 13, 14, 15, 37, 42, 61, 66, 73, 92, 114, 157, 182, 193, 258, 277, 308, 313, 397, 402, 421, 457, 476, 477, 541, 546, 570, 613, 661, 673, 733, 744, 757, 812, 877, 978, 997, 1093, 1148, 1153, 1201, 1213, 1237, 1266, 1278, 1321, 1381, 1428, 1453, 1621, 1657]

cp's OEIS Frontend

A348659 Numbers whose numerator and denominator of the harmonic mean of their divisors are both prime numbers.

Table of values

List of values