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.

A229820 Even bisection gives sequence a itself, n->a(2*(5*n+k)-1) gives k-th differences of a for k=1..5 with a(n)=n for n<2.

Table of values

n a(n)
0 0
1 1
2 1
3 -1
4 1
5 -1
6 -1
7 7
8 1
9 -21
10 -1
11 0
12 -1
13 -2
14 7
15 6
16 1
17 -14
18 -21
19 28
20 -1
21 -2
22 0
23 4
24 -1
25 -8
26 -2
27 14
28 7
29 -14
30 6
31 2
32 1
33 -4
34 -14
35 6
36 -21
37 0
38 28
39 -28
40 -1
41 -2
42 -2
43 2
44 0
45 6
46 4
47 -28
48 -1
49 48
50 -8
51 0
52 -2
53 8
54 14
55 -22
56 7
57 20
58 -14
59 40
60 6
61 8
62 2
63 -14
64 1
65 -2
66 -4
67 60
68 -14

List of values

[0, 1, 1, -1, 1, -1, -1, 7, 1, -21, -1, 0, -1, -2, 7, 6, 1, -14, -21, 28, -1, -2, 0, 4, -1, -8, -2, 14, 7, -14, 6, 2, 1, -4, -14, 6, -21, 0, 28, -28, -1, -2, -2, 2, 0, 6, 4, -28, -1, 48, -8, 0, -2, 8, 14, -22, 7, 20, -14, 40, 6, 8, 2, -14, 1, -2, -4, 60, -14]