A033855 - cp's OEIS frontend

A033855 Numbers k such that j(k)*phi(k) = s(phi(k)), where j(k) = A033831(k), s(k) = sigma(k) - k.

n	a(n)
1	1
2	2
3	7
4	9
5	29
6	143
7	155
8	183
9	731
10	791
11	1011
12	1346
13	35659
14	60484
15	65524
16	525227
17	525557
18	525617
19	526697
20	529817
21	531779
22	567437
23	1047554
24	2541679
25	33550337
26	214486281
27	1476844097
28	1478227937
29	1543409687
30	14200144243
31	14200244477
32	14200257551
33	14200349281
34	14200779611
35	14201040053
36	14201501401

[1, 2, 7, 9, 29, 143, 155, 183, 731, 791, 1011, 1346, 35659, 60484, 65524, 525227, 525557, 525617, 526697, 529817, 531779, 567437, 1047554, 2541679, 33550337, 214486281, 1476844097, 1478227937, 1543409687, 14200144243, 14200244477, 14200257551, 14200349281, 14200779611, 14201040053, 14201501401]

cp's OEIS Frontend

A033855 Numbers k such that j(k)*phi(k) = s(phi(k)), where j(k) = A033831(k), s(k) = sigma(k) - k.

Table of values

List of values