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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.

A211027 Triangle of binary numbers >= 1 with no initial repeats.

Table of values

n a(n)
1 1
2 10
3 100
4 101
5 1000
6 1001
7 1011
8 10000
9 10001
10 10010
11 10011
12 10110
13 10111
14 100000
15 100001
16 100010
17 100011
18 100101
19 100110
20 100111
21 101100
22 101110
23 101111
24 1000000
25 1000001
26 1000010
27 1000011
28 1000100
29 1000101
30 1000110
31 1000111
32 1001010
33 1001011
34 1001100
35 1001101
36 1001110
37 1001111
38 1011000
39 1011001
40 1011100
41 1011101
42 1011110
43 1011111

List of values

[1, 10, 100, 101, 1000, 1001, 1011, 10000, 10001, 10010, 10011, 10110, 10111, 100000, 100001, 100010, 100011, 100101, 100110, 100111, 101100, 101110, 101111, 1000000, 1000001, 1000010, 1000011, 1000100, 1000101, 1000110, 1000111, 1001010, 1001011, 1001100, 1001101, 1001110, 1001111, 1011000, 1011001, 1011100, 1011101, 1011110, 1011111]

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

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