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.

A226279 a(4n) = a(4n+2) = 2*n , a(4n+1) = a(4n+3) = 2*n-1.

Table of values

n a(n)
0 0
1 -1
2 0
3 -1
4 2
5 1
6 2
7 1
8 4
9 3
10 4
11 3
12 6
13 5
14 6
15 5
16 8
17 7
18 8
19 7
20 10
21 9
22 10
23 9
24 12
25 11
26 12
27 11
28 14
29 13
30 14
31 13
32 16
33 15
34 16
35 15
36 18
37 17
38 18
39 17
40 20
41 19
42 20
43 19
44 22
45 21
46 22
47 21
48 24
49 23
50 24
51 23
52 26
53 25
54 26
55 25
56 28
57 27
58 28
59 27
60 30
61 29
62 30
63 29

List of values

[0, -1, 0, -1, 2, 1, 2, 1, 4, 3, 4, 3, 6, 5, 6, 5, 8, 7, 8, 7, 10, 9, 10, 9, 12, 11, 12, 11, 14, 13, 14, 13, 16, 15, 16, 15, 18, 17, 18, 17, 20, 19, 20, 19, 22, 21, 22, 21, 24, 23, 24, 23, 26, 25, 26, 25, 28, 27, 28, 27, 30, 29, 30, 29]