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.

A087873 a(n)=a(a(n-1))+a(n-a(n-1)) p(a(n))=n, b(n)=p(p(n-1))+a(n-a(n-1)).

Table of values

n a(n)
1 1
2 1
3 6
4 10
5 10
6 27
7 18
8 19
9 22
10 33
11 34
12 35
13 36
14 39
15 40
16 43
17 49
18 65
19 66
20 67
21 68
22 69
23 72
24 73
25 74
26 77
27 78
28 81
29 87
30 88
31 91
32 97
33 107
34 129
35 130
36 131
37 132
38 133
39 134
40 137
41 138
42 139
43 140
44 143
45 144
46 145
47 148
48 149
49 152
50 158
51 159
52 160
53 163
54 164
55 167
56 173
57 174
58 177
59 183
60 193

List of values

[1, 1, 6, 10, 10, 27, 18, 19, 22, 33, 34, 35, 36, 39, 40, 43, 49, 65, 66, 67, 68, 69, 72, 73, 74, 77, 78, 81, 87, 88, 91, 97, 107, 129, 130, 131, 132, 133, 134, 137, 138, 139, 140, 143, 144, 145, 148, 149, 152, 158, 159, 160, 163, 164, 167, 173, 174, 177, 183, 193]