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.

A337636 Number of numbers k <= n such that k+1 is in A095096 and k is in A020899.

Table of values

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

List of values

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