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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.

A278059 Relative of Hofstadter Q-sequence: a(n) = n for 1 <= n <= 7; a(n) = a(n-a(n-1)) + a(n-a(n-2)) for n > 7.

Table of values

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

List of values

[1, 2, 3, 4, 5, 6, 7, 3, 8, 9, 5, 10, 6, 7, 11, 13, 10, 8, 13, 17, 7, 16, 20, 7, 13, 19, 10, 16, 19, 12, 23, 25, 12, 24, 25, 15, 26, 30, 14, 28, 16, 26, 20, 15, 25, 30, 26, 24, 33, 29, 24, 36, 29, 21, 43, 31, 26, 35, 19, 29, 51, 17, 40, 33, 38, 28]

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

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