A382352 - cp's OEIS frontend

A382352 Numbers k such that the sum of the reciprocals of the indices of distinct prime factors of k is an integer.

n	a(n)
1	1
2	2
3	4
4	8
5	16
6	32
7	64
8	128
9	195
10	256
11	390
12	512
13	585
14	780
15	975
16	1024
17	1170
18	1560
19	1755
20	1950
21	2048
22	2340
23	2535
24	2925
25	3120
26	3510
27	3900
28	4096
29	4680
30	4875
31	5070
32	5265
33	5850
34	6240
35	7020
36	7605
37	7800
38	8192
39	8775
40	9360
41	9750
42	10101
43	10140
44	10530
45	11700
46	12480
47	12675
48	14040
49	14625

[1, 2, 4, 8, 16, 32, 64, 128, 195, 256, 390, 512, 585, 780, 975, 1024, 1170, 1560, 1755, 1950, 2048, 2340, 2535, 2925, 3120, 3510, 3900, 4096, 4680, 4875, 5070, 5265, 5850, 6240, 7020, 7605, 7800, 8192, 8775, 9360, 9750, 10101, 10140, 10530, 11700, 12480, 12675, 14040, 14625]

cp's OEIS Frontend

A382352 Numbers k such that the sum of the reciprocals of the indices of distinct prime factors of k is an integer.

Table of values

List of values