cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A229861 Let sigma*_m (n) be result of applying sum of anti-divisors m times to n; call n (m,k)-anti-perfect if sigma*_m (n) = k*n; sequence gives the (3,k)-anti-perfect numbers.

Table of values

n a(n)
1 4
2 5
3 8
4 32
5 41
6 54
7 56
8 68
9 123
10 946
11 1494
12 1856
13 2056
14 5186
15 6874
16 8104
17 10419
18 17386
19 27024
20 31100
21 84026
22 167786
23 272089
24 733253
25 812600
26 1188000
27 1544579
28 2667584
29 4921776
30 16360708
31 21524990
32 27914146

List of values

[4, 5, 8, 32, 41, 54, 56, 68, 123, 946, 1494, 1856, 2056, 5186, 6874, 8104, 10419, 17386, 27024, 31100, 84026, 167786, 272089, 733253, 812600, 1188000, 1544579, 2667584, 4921776, 16360708, 21524990, 27914146]