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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.

A238229 Numbers n such that if x = sigma(n)-phi(n)+tau(n)-n then n = sigma(x)-phi(x)+tau(x)-x.

Table of values

n a(n)
1 2
2 4
3 20
4 66
5 342
6 34092
7 40842
8 41922
9 46242
10 55422
11 207624
12 259448
13 533172
14 547300
15 571992
16 667408
17 1531032
18 1786288
19 10983114
20 114013752
21 133506680
22 323277822
23 347360860
24 386144360
25 387415458
26 459603716
27 476991704
28 1443279992
29 1539484232
30 15537978552

List of values

[2, 4, 20, 66, 342, 34092, 40842, 41922, 46242, 55422, 207624, 259448, 533172, 547300, 571992, 667408, 1531032, 1786288, 10983114, 114013752, 133506680, 323277822, 347360860, 386144360, 387415458, 459603716, 476991704, 1443279992, 1539484232, 15537978552]

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

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