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.

A276037 Numbers using only digits 1 and 5.

Table of values

n a(n)
1 1
2 5
3 11
4 15
5 51
6 55
7 111
8 115
9 151
10 155
11 511
12 515
13 551
14 555
15 1111
16 1115
17 1151
18 1155
19 1511
20 1515
21 1551
22 1555
23 5111
24 5115
25 5151
26 5155
27 5511
28 5515
29 5551
30 5555
31 11111
32 11115
33 11151
34 11155
35 11511
36 11515
37 11551
38 11555
39 15111
40 15115
41 15151
42 15155
43 15511
44 15515

List of values

[1, 5, 11, 15, 51, 55, 111, 115, 151, 155, 511, 515, 551, 555, 1111, 1115, 1151, 1155, 1511, 1515, 1551, 1555, 5111, 5115, 5151, 5155, 5511, 5515, 5551, 5555, 11111, 11115, 11151, 11155, 11511, 11515, 11551, 11555, 15111, 15115, 15151, 15155, 15511, 15515]

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

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