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.

A230492 Numbers such that the sequence of all possible sums of divisors of n is increasing but not strictly so, the sums being ordered by their characteristic functions, seen as binary numbers (see example).

Table of values

n a(n)
1 6
2 28
3 117
4 475
5 496
6 775
7 2009
8 8128
9 13079
10 13189
11 14663
12 16211
13 23903
14 26675
15 30503
16 35425
17 37271
18 41123
19 43681
20 44591
21 46163
22 47519
23 55991
24 59831
25 63971
26 66263
27 66785
28 73511
29 76751
30 78319
31 81923
32 88559
33 88723
34 107423
35 112631
36 127571
37 130271
38 140825

List of values

[6, 28, 117, 475, 496, 775, 2009, 8128, 13079, 13189, 14663, 16211, 23903, 26675, 30503, 35425, 37271, 41123, 43681, 44591, 46163, 47519, 55991, 59831, 63971, 66263, 66785, 73511, 76751, 78319, 81923, 88559, 88723, 107423, 112631, 127571, 130271, 140825]