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.

A280578 Integers that are fixed points of some iteration of f(x) = phi(x) + floor(x/2), see A280577.

Table of values

n a(n)
1 1
2 2
3 3
4 4
5 5
6 6
7 8
8 9
9 10
10 15
11 16
12 21
13 22
14 23
15 30
16 32
17 33
18 36
19 45
20 46
21 64
22 128
23 255
24 256
25 413
26 498
27 512
28 513
29 514
30 553
31 554
32 580
33 612
34 744
35 765
36 766
37 1024
38 1073
39 1125
40 1162
41 1250
42 1540
43 1544
44 2048
45 2241
46 2413
47 2457
48 2458
49 2522
50 2524
51 2596
52 2754
53 2889
54 3348
55 3352
56 3474
57 4096

List of values

[1, 2, 3, 4, 5, 6, 8, 9, 10, 15, 16, 21, 22, 23, 30, 32, 33, 36, 45, 46, 64, 128, 255, 256, 413, 498, 512, 513, 514, 553, 554, 580, 612, 744, 765, 766, 1024, 1073, 1125, 1162, 1250, 1540, 1544, 2048, 2241, 2413, 2457, 2458, 2522, 2524, 2596, 2754, 2889, 3348, 3352, 3474, 4096]