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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.

A219668 Numbers m for which sigma(m) - m = tau(m)^k for some integer k > 0.

Table of values

n a(n)
1 4
2 26
3 56
4 90
5 122
6 568
7 2042
8 8186
9 32762
10 37432
11 68652
12 299576
13 2097146
14 8388602
15 19173944
16 33554426
17 67751984
18 78536544824
19 306296525088
20 15640174780344
21 39998905951528
22 120948840863188

List of values

[4, 26, 56, 90, 122, 568, 2042, 8186, 32762, 37432, 68652, 299576, 2097146, 8388602, 19173944, 33554426, 67751984, 78536544824, 306296525088, 15640174780344, 39998905951528, 120948840863188]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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