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.

A323456 Irregular triangle read by rows: row n lists the numbers that can be obtained from the binary expansion of n by either deleting a single 0, or inserting a single 0 after any 1.

Table of values

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

List of values

[2, 1, 4, 5, 6, 2, 8, 3, 9, 10, 3, 10, 12, 11, 13, 14, 4, 16, 5, 17, 18, 5, 6, 18, 20, 7, 19, 21, 22, 6, 20, 24, 7, 21, 25, 26, 7, 22, 26, 28, 23, 27, 29, 30, 8, 32, 9, 33, 34, 9, 10, 34, 36, 11, 35, 37, 38, 10, 12, 36, 40, 11, 13, 37, 41, 42, 11, 14, 38, 42, 44]