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.

A247647 Binary numbers that begin and end with 1 and do not contain two adjacent zeros.

Table of values

n a(n)
1 1
2 11
3 101
4 111
5 1011
6 1101
7 1111
8 10101
9 10111
10 11011
11 11101
12 11111
13 101011
14 101101
15 101111
16 110101
17 110111
18 111011
19 111101
20 111111
21 1010101
22 1010111
23 1011011
24 1011101
25 1011111
26 1101011
27 1101101
28 1101111
29 1110101
30 1110111
31 1111011
32 1111101
33 1111111
34 10101011
35 10101101
36 10101111
37 10110101
38 10110111
39 10111011
40 10111101

List of values

[1, 11, 101, 111, 1011, 1101, 1111, 10101, 10111, 11011, 11101, 11111, 101011, 101101, 101111, 110101, 110111, 111011, 111101, 111111, 1010101, 1010111, 1011011, 1011101, 1011111, 1101011, 1101101, 1101111, 1110101, 1110111, 1111011, 1111101, 1111111, 10101011, 10101101, 10101111, 10110101, 10110111, 10111011, 10111101]

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

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