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.

A073089 a(n) = (1/2)*(4n - 3 - Sum_{k=1..n} A007400(k)).

Table of values

n a(n)
1 0
2 0
3 1
4 1
5 1
6 0
7 0
8 1
9 1
10 0
11 1
12 1
13 0
14 0
15 0
16 1
17 1
18 0
19 1
20 1
21 1
22 0
23 0
24 1
25 0
26 0
27 1
28 1
29 0
30 0
31 0
32 1
33 1
34 0
35 1
36 1
37 1
38 0
39 0
40 1
41 1
42 0
43 1
44 1
45 0
46 0
47 0
48 1
49 0
50 0
51 1
52 1
53 1
54 0
55 0
56 1
57 0
58 0
59 1
60 1
61 0
62 0
63 0
64 1
65 1
66 0
67 1
68 1
69 1
70 0
71 0
72 1
73 1
74 0
75 1
76 1
77 0
78 0
79 0
80 1
81 1
82 0
83 1
84 1
85 1
86 0
87 0
88 1
89 0
90 0
91 1
92 1
93 0
94 0
95 0
96 1
97 0
98 0
99 1
100 1
101 1
102 0
103 0
104 1
105 1

List of values

[0, 0, 1, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 1, 1, 0, 1, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 1, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 1, 0, 0, 1, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 1, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 1, 1, 0, 1, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 1, 1, 1, 0, 0, 1, 1]