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.

A156723 a(n)=A156253(n)-A156251(n).

Table of values

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

List of values

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