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.

A206915 The index (in A006995) of the greatest binary palindrome <= n; also the 'lower inverse' of A006995.

Table of values

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

List of values

[1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 6, 6, 6, 6, 7, 7, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 16, 16, 16, 16, 16, 16, 16]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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