A169635 - cp's OEIS frontend

A169635 Integers m such that sigma_2(m) = sigma_2(m + 2) where sigma_2(m) is the sum of squares of divisors of m (A001157).

n	a(n)
1	24
2	215
3	280
4	1079
5	947519
6	1362239
7	2230271
8	14939999
9	19720007
10	32509439
11	45581759
12	45841247
13	49436927
14	78436511
15	82842911
16	101014631
17	166828031
18	225622151
19	225757799
20	250999559
21	377129087
22	554998751
23	619606439
24	846765431
25	1204092287
26	1302170687
27	1710035711

[24, 215, 280, 1079, 947519, 1362239, 2230271, 14939999, 19720007, 32509439, 45581759, 45841247, 49436927, 78436511, 82842911, 101014631, 166828031, 225622151, 225757799, 250999559, 377129087, 554998751, 619606439, 846765431, 1204092287, 1302170687, 1710035711]

cp's OEIS Frontend

A169635 Integers m such that sigma_2(m) = sigma_2(m + 2) where sigma_2(m) is the sum of squares of divisors of m (A001157).

Table of values

List of values