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.

A309560 a(1) = a(2) = 1, a(3) = 2, a(4) = 3, a(5) = 5, a(6) = a(7) = 6, a(8) = 7; a(n) = a(n-a(n-1)) + a(n-a(n-2)) + a(n-a(n-3)) + a(n-a(n-4)) for n > 8.

Table of values

n a(n)
1 1
2 1
3 2
4 3
5 5
6 6
7 6
8 7
9 8
10 9
11 11
12 11
13 10
14 12
15 13
16 16
17 15
18 14
19 16
20 17
21 20
22 19
23 17
24 20
25 23
26 22
27 23
28 23
29 24
30 25
31 26
32 27
33 27
34 27
35 29
36 30
37 31
38 32
39 30
40 33
41 35
42 34
43 34
44 37
45 38
46 37
47 36
48 42
49 38
50 40
51 42
52 41
53 45
54 41
55 43
56 47
57 48
58 48
59 49
60 43
61 45
62 53
63 52
64 58
65 44
66 48
67 54
68 58

List of values

[1, 1, 2, 3, 5, 6, 6, 7, 8, 9, 11, 11, 10, 12, 13, 16, 15, 14, 16, 17, 20, 19, 17, 20, 23, 22, 23, 23, 24, 25, 26, 27, 27, 27, 29, 30, 31, 32, 30, 33, 35, 34, 34, 37, 38, 37, 36, 42, 38, 40, 42, 41, 45, 41, 43, 47, 48, 48, 49, 43, 45, 53, 52, 58, 44, 48, 54, 58]

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

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