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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.

A276039 Numbers using only digits 1 and 7.

Table of values

n a(n)
1 1
2 7
3 11
4 17
5 71
6 77
7 111
8 117
9 171
10 177
11 711
12 717
13 771
14 777
15 1111
16 1117
17 1171
18 1177
19 1711
20 1717
21 1771
22 1777
23 7111
24 7117
25 7171
26 7177
27 7711
28 7717
29 7771
30 7777
31 11111
32 11117
33 11171
34 11177
35 11711
36 11717
37 11771
38 11777
39 17111
40 17117
41 17171
42 17177
43 17711
44 17717
45 17771
46 17777

List of values

[1, 7, 11, 17, 71, 77, 111, 117, 171, 177, 711, 717, 771, 777, 1111, 1117, 1171, 1177, 1711, 1717, 1771, 1777, 7111, 7117, 7171, 7177, 7711, 7717, 7771, 7777, 11111, 11117, 11171, 11177, 11711, 11717, 11771, 11777, 17111, 17117, 17171, 17177, 17711, 17717, 17771, 17777]

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

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