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.

A135604 Self-describing sequence: 1 even digit between two odd, then 2 even digits between two odd, then 3 even digits, then 4, then 6... The length of each run of even digits is given by the sequence itself (the smallest available integer is used when needed). Zero is an even digit.

Table of values

n a(n)
1 1
2 2
3 3
4 4
5 6
6 7
7 8
8 20
9 30
10 40
11 41
12 42
13 44
14 46
15 50
16 60
17 62
18 64
19 70
20 82
21 84
22 85
23 86
24 88
25 200
26 202
27 204
28 206
29 208
30 210
31 220
32 222
33 224
34 226
35 228
36 240
37 242
38 244
39 246
40 248
41 250
42 260
43 262
44 264
45 266
46 268
47 280
48 282
49 284
50 286
51 288

List of values

[1, 2, 3, 4, 6, 7, 8, 20, 30, 40, 41, 42, 44, 46, 50, 60, 62, 64, 70, 82, 84, 85, 86, 88, 200, 202, 204, 206, 208, 210, 220, 222, 224, 226, 228, 240, 242, 244, 246, 248, 250, 260, 262, 264, 266, 268, 280, 282, 284, 286, 288]

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

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