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.

A205591 a(1) = 1, a(n) = a(floor((2n-1)/3)) + a(floor(2n/3)) for n > 1.

Table of values

n a(n)
1 1
2 2
3 3
4 4
5 6
6 7
7 8
8 12
9 13
10 14
11 16
12 20
13 24
14 26
15 27
16 28
17 32
18 36
19 40
20 48
21 50
22 52
23 54
24 55
25 56
26 64
27 68
28 72
29 80
30 88
31 96
32 100
33 102
34 104
35 108
36 109
37 110
38 112
39 120
40 128
41 136
42 140
43 144
44 160
45 168
46 176
47 192
48 196
49 200
50 204
51 206
52 208
53 216
54 217
55 218
56 220
57 222
58 224
59 240
60 248
61 256

List of values

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 20, 24, 26, 27, 28, 32, 36, 40, 48, 50, 52, 54, 55, 56, 64, 68, 72, 80, 88, 96, 100, 102, 104, 108, 109, 110, 112, 120, 128, 136, 140, 144, 160, 168, 176, 192, 196, 200, 204, 206, 208, 216, 217, 218, 220, 222, 224, 240, 248, 256]

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

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