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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.

A278038 Binary vectors not containing three consecutive 1's; or, representation of n in the tribonacci base.

Table of values

n a(n)
0 0
1 1
2 10
3 11
4 100
5 101
6 110
7 1000
8 1001
9 1010
10 1011
11 1100
12 1101
13 10000
14 10001
15 10010
16 10011
17 10100
18 10101
19 10110
20 11000
21 11001
22 11010
23 11011
24 100000
25 100001
26 100010
27 100011
28 100100
29 100101
30 100110
31 101000
32 101001
33 101010
34 101011
35 101100
36 101101
37 110000
38 110001
39 110010
40 110011
41 110100
42 110101
43 110110
44 1000000

List of values

[0, 1, 10, 11, 100, 101, 110, 1000, 1001, 1010, 1011, 1100, 1101, 10000, 10001, 10010, 10011, 10100, 10101, 10110, 11000, 11001, 11010, 11011, 100000, 100001, 100010, 100011, 100100, 100101, 100110, 101000, 101001, 101010, 101011, 101100, 101101, 110000, 110001, 110010, 110011, 110100, 110101, 110110, 1000000]

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

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