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.

A171059 a(n) is the lexically first sequence of distinct nonzero integers such that if S(n) is the string formed from the digits of a(1)a(2)...a(n), then dividing S(n) into substrings with lengths equal to the successive digits of S(n) (treating 0 as 10) results in substrings beginning with the successive digits of Pi (A000796).

Table of values

n a(n)
1 3
2 1
3 2
4 14
5 4
6 15
7 5
8 6
9 7
10 9
11 8
12 10
13 26
14 11
15 12
16 50
17 13
18 23
19 16
20 17
21 25
22 18
23 19
24 20
25 80
26 21
27 22
28 24
29 29
30 27
31 28
32 30
33 37
34 90
35 31
36 32
37 33
38 34
39 35
40 200
41 36
42 43
43 84
44 60
45 201
46 38
47 61
48 39
49 40
50 41
51 42
52 430
53 53
54 48
55 44
56 320
57 45
58 46
59 79
60 47
61 49
62 51
63 52

List of values

[3, 1, 2, 14, 4, 15, 5, 6, 7, 9, 8, 10, 26, 11, 12, 50, 13, 23, 16, 17, 25, 18, 19, 20, 80, 21, 22, 24, 29, 27, 28, 30, 37, 90, 31, 32, 33, 34, 35, 200, 36, 43, 84, 60, 201, 38, 61, 39, 40, 41, 42, 430, 53, 48, 44, 320, 45, 46, 79, 47, 49, 51, 52]

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

Content is available under The OEIS End-User License Agreement.