A192286 - cp's OEIS frontend

A192286 Antiharmonic numbers using anti-divisors: numbers n such that sigma(n) divides sigma_2(n), where sigma(n) is the sum of anti-divisors of n and sigma_2(n) the sum of squares of anti-divisors of n.

n	a(n)
1	3
2	4
3	6
4	9
5	36
6	54
7	96
8	216
9	576
10	1212
11	1296
12	1582
13	2171
14	3129
15	3599
16	26847
17	45914
18	69984
19	76393
20	91013
21	137173
22	176678
23	182559
24	183087
25	236196
26	393216
27	497664
28	3823898
29	28697814
30	31850496
31	46572031
32	47992961
33	83951616
34	84934656
35	95969521
36	126310141
37	472250381

[3, 4, 6, 9, 36, 54, 96, 216, 576, 1212, 1296, 1582, 2171, 3129, 3599, 26847, 45914, 69984, 76393, 91013, 137173, 176678, 182559, 183087, 236196, 393216, 497664, 3823898, 28697814, 31850496, 46572031, 47992961, 83951616, 84934656, 95969521, 126310141, 472250381]

cp's OEIS Frontend

A192286 Antiharmonic numbers using anti-divisors: numbers n such that sigma(n) divides sigma_2(n), where sigma(n) is the sum of anti-divisors of n and sigma_2(n) the sum of squares of anti-divisors of n.

Table of values

List of values

cp's OEIS Frontend

A192286 Antiharmonic numbers using anti-divisors: numbers n such that sigma*(n) divides sigma*_2(n), where sigma*(n) is the sum of anti-divisors of n and sigma*_2(n) the sum of squares of anti-divisors of n.

Table of values

List of values

A192286 Antiharmonic numbers using anti-divisors: numbers n such that sigma(n) divides sigma_2(n), where sigma(n) is the sum of anti-divisors of n and sigma_2(n) the sum of squares of anti-divisors of n.