A247213 - cp's OEIS frontend

A247213 Numbers n = Product_(p_i^e_i) such that nn = Product_((p_i + 2)^e_i) is divisible by n.

n	a(n)
1	1
2	2
3	4
4	8
5	16
6	32
7	64
8	105
9	128
10	210
11	256
12	315
13	420
14	512
15	630
16	840
17	1024
18	1260
19	1575
20	1680
21	2048
22	2520
23	3150
24	3360
25	4096
26	5040
27	6300
28	6720
29	8192
30	10080
31	11025
32	12600
33	13440
34	16384
35	20160
36	22050
37	25200
38	26880
39	32768
40	33075
41	40320
42	44100
43	50400
44	53760
45	65536

[1, 2, 4, 8, 16, 32, 64, 105, 128, 210, 256, 315, 420, 512, 630, 840, 1024, 1260, 1575, 1680, 2048, 2520, 3150, 3360, 4096, 5040, 6300, 6720, 8192, 10080, 11025, 12600, 13440, 16384, 20160, 22050, 25200, 26880, 32768, 33075, 40320, 44100, 50400, 53760, 65536]

cp's OEIS Frontend

A247213 Numbers n = Product_(p_i^e_i) such that nn = Product_((p_i + 2)^e_i) is divisible by n.

Table of values

List of values