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.

A105186 Replace odd-positioned digits with 0 in ternary representation of n.

Table of values

n a(n)
0 0
1 1
2 2
3 0
4 1
5 2
6 0
7 1
8 2
9 9
10 10
11 11
12 9
13 10
14 11
15 9
16 10
17 11
18 18
19 19
20 20
21 18
22 19
23 20
24 18
25 19
26 20
27 0
28 1
29 2
30 0
31 1
32 2
33 0
34 1
35 2
36 9
37 10
38 11
39 9
40 10
41 11
42 9
43 10
44 11
45 18
46 19
47 20
48 18
49 19
50 20
51 18
52 19
53 20
54 0
55 1
56 2
57 0
58 1
59 2
60 0
61 1
62 2
63 9
64 10
65 11
66 9
67 10
68 11
69 9
70 10
71 11
72 18
73 19
74 20
75 18
76 19
77 20
78 18
79 19
80 20
81 81
82 82

List of values

[0, 1, 2, 0, 1, 2, 0, 1, 2, 9, 10, 11, 9, 10, 11, 9, 10, 11, 18, 19, 20, 18, 19, 20, 18, 19, 20, 0, 1, 2, 0, 1, 2, 0, 1, 2, 9, 10, 11, 9, 10, 11, 9, 10, 11, 18, 19, 20, 18, 19, 20, 18, 19, 20, 0, 1, 2, 0, 1, 2, 0, 1, 2, 9, 10, 11, 9, 10, 11, 9, 10, 11, 18, 19, 20, 18, 19, 20, 18, 19, 20, 81, 82]

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

Content is available under The OEIS End-User License Agreement.