A065819 - cp's OEIS frontend

A065819 Numbers k such that 4phi(k) = 3sigma(k).

n	a(n)
1	7
2	209
3	10013
4	11687
5	12857
6	17537
7	27577
8	28067
9	700321
10	770431
11	1321189
12	1542281
13	1681861
14	1963039
15	2282641
16	2313961
17	2664259
18	3308041
19	3709057
20	3859207
21	3929761
22	4315751
23	4380541
24	4561381
25	5193001
26	5331001
27	5576519
28	5962333
29	6561511
30	7332919
31	10065991
32	12133627
33	13678613
34	14313949
35	15263831

[7, 209, 10013, 11687, 12857, 17537, 27577, 28067, 700321, 770431, 1321189, 1542281, 1681861, 1963039, 2282641, 2313961, 2664259, 3308041, 3709057, 3859207, 3929761, 4315751, 4380541, 4561381, 5193001, 5331001, 5576519, 5962333, 6561511, 7332919, 10065991, 12133627, 13678613, 14313949, 15263831]

cp's OEIS Frontend

A065819 Numbers k such that 4phi(k) = 3sigma(k).

Table of values

List of values

cp's OEIS Frontend

A065819 Numbers k such that 4*phi(k) = 3*sigma(k).

Table of values

List of values

A065819 Numbers k such that 4phi(k) = 3sigma(k).