A225709 - cp's OEIS frontend

A225709 Composite squarefree numbers n such that p(i)-9 divides n+9, where p(i) are the prime factors of n.

n	a(n)
1	15
2	21
3	33
4	35
5	39
6	55
7	77
8	91
9	119
10	143
11	195
12	231
13	255
14	299
15	455
16	551
17	651
18	663
19	715
20	935
21	1131
22	1155
23	1419
24	2015
25	2035
26	2431
27	3003
28	3111
29	3927
30	4611
31	5451
32	7215
33	7735
34	8151
35	8671
36	9191
37	10455
38	11571
39	15015
40	15477
41	16511
42	18343
43	18615
44	23541
45	24871
46	25415
47	28391

[15, 21, 33, 35, 39, 55, 77, 91, 119, 143, 195, 231, 255, 299, 455, 551, 651, 663, 715, 935, 1131, 1155, 1419, 2015, 2035, 2431, 3003, 3111, 3927, 4611, 5451, 7215, 7735, 8151, 8671, 9191, 10455, 11571, 15015, 15477, 16511, 18343, 18615, 23541, 24871, 25415, 28391]

cp's OEIS Frontend

A225709 Composite squarefree numbers n such that p(i)-9 divides n+9, where p(i) are the prime factors of n.

Table of values

List of values