A229273 - cp's OEIS frontend

A229273 Composite squarefree numbers n such that p-tau(n) divides n-sigma(n), where p are the prime factors of n, tau(n) = A000005(n) and sigma(n) = A000203(n).

n	a(n)
1	6
2	10
3	15
4	22
5	78
6	138
7	273
8	483
9	3243
10	3913
11	104377
12	477337
13	1537627
14	1904487
15	2508961
16	3326829
17	3716167
18	5148949
19	6154017
20	6686113
21	11521842
22	14355679
23	16872583
24	25165777
25	28029883
26	31232337
27	32403342
28	50725419
29	57396469
30	68815381
31	86850249
32	98242959

[6, 10, 15, 22, 78, 138, 273, 483, 3243, 3913, 104377, 477337, 1537627, 1904487, 2508961, 3326829, 3716167, 5148949, 6154017, 6686113, 11521842, 14355679, 16872583, 25165777, 28029883, 31232337, 32403342, 50725419, 57396469, 68815381, 86850249, 98242959]

cp's OEIS Frontend

A229273 Composite squarefree numbers n such that p-tau(n) divides n-sigma(n), where p are the prime factors of n, tau(n) = A000005(n) and sigma(n) = A000203(n).

Table of values

List of values