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.

A227386 a(n) = n - 1 - a(a(n-1)) - a(a(a(n-2))) - a(a(a(a(n-3)))) - a(a(a(a(a(n-4))))) - ... with a(0) = 0.

Table of values

n a(n)
0 0
1 0
2 1
3 2
4 2
5 3
6 3
7 3
8 4
9 5
10 5
11 5
12 5
13 6
14 7
15 8
16 8
17 9
18 9
19 9
20 9
21 9
22 10
23 11
24 12
25 13
26 13
27 14
28 14
29 15
30 15
31 15
32 16
33 17
34 17
35 17
36 17
37 17
38 17
39 18
40 19
41 20
42 21
43 22
44 22
45 23
46 23
47 24
48 24
49 25
50 25
51 25
52 26
53 27
54 27
55 27
56 28
57 29
58 29
59 29
60 29
61 30
62 31
63 32
64 32
65 33
66 33
67 33
68 33
69 33

List of values

[0, 0, 1, 2, 2, 3, 3, 3, 4, 5, 5, 5, 5, 6, 7, 8, 8, 9, 9, 9, 9, 9, 10, 11, 12, 13, 13, 14, 14, 15, 15, 15, 16, 17, 17, 17, 17, 17, 17, 18, 19, 20, 21, 22, 22, 23, 23, 24, 24, 25, 25, 25, 26, 27, 27, 27, 28, 29, 29, 29, 29, 30, 31, 32, 32, 33, 33, 33, 33, 33]

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

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