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.

A119557 a(1)=0,a(2)=0,a(3)=1 then a(n)=abs(a(n-1)-a(n-2))-a(n-3).

Table of values

n a(n)
0 0
1 0
2 1
3 1
4 0
5 0
6 -1
7 1
8 2
9 2
10 -1
11 1
12 0
13 2
14 1
15 1
16 -2
17 2
18 3
19 3
20 -2
21 2
22 1
23 3
24 0
25 2
26 -1
27 3
28 2
29 2
30 -3
31 3
32 4
33 4
34 -3
35 3
36 2
37 4
38 -1
39 3
40 0
41 4
42 1
43 3
44 -2
45 4
46 3
47 3
48 -4
49 4
50 5
51 5
52 -4
53 4
54 3
55 5
56 -2
57 4
58 1
59 5
60 0
61 4
62 -1
63 5
64 2
65 4
66 -3
67 5
68 4
69 4
70 -5
71 5
72 6
73 6
74 -5
75 5
76 4
77 6
78 -3
79 5
80 2
81 6
82 -1
83 5
84 0
85 6
86 1
87 5
88 -2
89 6
90 3
91 5
92 -4
93 6
94 5
95 5
96 -6
97 6
98 7
99 7

List of values

[0, 0, 1, 1, 0, 0, -1, 1, 2, 2, -1, 1, 0, 2, 1, 1, -2, 2, 3, 3, -2, 2, 1, 3, 0, 2, -1, 3, 2, 2, -3, 3, 4, 4, -3, 3, 2, 4, -1, 3, 0, 4, 1, 3, -2, 4, 3, 3, -4, 4, 5, 5, -4, 4, 3, 5, -2, 4, 1, 5, 0, 4, -1, 5, 2, 4, -3, 5, 4, 4, -5, 5, 6, 6, -5, 5, 4, 6, -3, 5, 2, 6, -1, 5, 0, 6, 1, 5, -2, 6, 3, 5, -4, 6, 5, 5, -6, 6, 7, 7]