A230545 - cp's OEIS frontend

A230545 Solutions of the equation n' = n + phi(n), where n' is the arithmetic derivative of n.

n	a(n)
1	8
2	12
3	100
4	140
5	243
6	405
7	1372
8	46875
9	56644
10	64827
11	98260
12	101871
13	107811
14	129375
15	230692
16	243675
17	300820
18	644204
19	851175
20	1953125
21	3828125
22	7948395
23	19307236
24	28218268
25	36517316
26	69330772
27	70174377
28	93961125
29	115008417
30	173353125
31	181010116
32	267603885
33	404021709

[8, 12, 100, 140, 243, 405, 1372, 46875, 56644, 64827, 98260, 101871, 107811, 129375, 230692, 243675, 300820, 644204, 851175, 1953125, 3828125, 7948395, 19307236, 28218268, 36517316, 69330772, 70174377, 93961125, 115008417, 173353125, 181010116, 267603885, 404021709]

cp's OEIS Frontend

A230545 Solutions of the equation n' = n + phi(n), where n' is the arithmetic derivative of n.

Table of values

List of values