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.

A289667 Concatenate prime factorization written in base 3, convert back to decimal.

Table of values

n a(n)
1 1
2 2
3 3
4 8
5 5
6 21
7 7
8 21
9 11
10 23
11 11
12 75
13 13
14 25
15 32
16 22
17 17
18 65
19 19
20 77
21 34
22 65
23 23
24 192
25 17
26 67
27 30
28 79
29 29
30 194
31 31
32 23
33 92
34 71
35 52
36 227
37 37
38 73
39 94
40 194
41 41
42 196
43 43
44 227
45 104
46 77
47 47
48 201
49 23
50 71
51 98
52 229
53 53
54 192
55 146
56 196
57 100
58 191
59 59
60 680
61 61
62 193
63 106
64 24

List of values

[1, 2, 3, 8, 5, 21, 7, 21, 11, 23, 11, 75, 13, 25, 32, 22, 17, 65, 19, 77, 34, 65, 23, 192, 17, 67, 30, 79, 29, 194, 31, 23, 92, 71, 52, 227, 37, 73, 94, 194, 41, 196, 43, 227, 104, 77, 47, 201, 23, 71, 98, 229, 53, 192, 146, 196, 100, 191, 59, 680, 61, 193, 106, 24]

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

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