A369007 - cp's OEIS frontend

A369007 Numbers k for which k' / gcd(k,k') is a multiple of 27, where k' stands for the arithmetic derivative of k, A003415(k).

n	a(n)
1	1
2	158
3	160
4	208
5	212
6	275
7	329
8	374
9	410
10	428
11	473
12	482
13	515
14	533
15	629
16	698
17	700
18	707
19	713
20	785
21	910
22	914
23	952
24	1055
25	1058
26	1067
27	1072
28	1076
29	1078
30	1080
31	1183
32	1204
33	1238
34	1346
35	1404
36	1431
37	1445
38	1454
39	1490
40	1562
41	1661
42	1691
43	1724
44	1813
45	1841
46	1865
47	1888
48	1937
49	1994
50	2102
51	2219
52	2291
53	2320
54	2372
55	2426
56	2432
57	2570

[1, 158, 160, 208, 212, 275, 329, 374, 410, 428, 473, 482, 515, 533, 629, 698, 700, 707, 713, 785, 910, 914, 952, 1055, 1058, 1067, 1072, 1076, 1078, 1080, 1183, 1204, 1238, 1346, 1404, 1431, 1445, 1454, 1490, 1562, 1661, 1691, 1724, 1813, 1841, 1865, 1888, 1937, 1994, 2102, 2219, 2291, 2320, 2372, 2426, 2432, 2570]

cp's OEIS Frontend

A369007 Numbers k for which k' / gcd(k,k') is a multiple of 27, where k' stands for the arithmetic derivative of k, A003415(k).

Table of values

List of values