A229272 - cp's OEIS frontend

A229272 Numbers n for which n' + n and n' - n are both prime, n' being the arithmetic derivative of n.

n	a(n)
1	210
2	330
3	390
4	690
5	798
6	966
7	1110
8	1230
9	2190
10	2310
11	2730
12	3270
13	4110
14	4530
15	4890
16	5430
17	6090
18	6270
19	6810
20	6990
21	7230
22	7890
23	8310
24	8490
25	9030
26	9210
27	9282
28	10470
29	10590
30	10770
31	12090
32	12210
33	12270
34	12570
35	12810
36	12930
37	13110
38	13830
39	14070
40	17070
41	17094
42	17310

[210, 330, 390, 690, 798, 966, 1110, 1230, 2190, 2310, 2730, 3270, 4110, 4530, 4890, 5430, 6090, 6270, 6810, 6990, 7230, 7890, 8310, 8490, 9030, 9210, 9282, 10470, 10590, 10770, 12090, 12210, 12270, 12570, 12810, 12930, 13110, 13830, 14070, 17070, 17094, 17310]

cp's OEIS Frontend

A229272 Numbers n for which n' + n and n' - n are both prime, n' being the arithmetic derivative of n.

Table of values

List of values