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.

A284294 Numbers using only digits 1 and 9.

Table of values

n a(n)
1 1
2 9
3 11
4 19
5 91
6 99
7 111
8 119
9 191
10 199
11 911
12 919
13 991
14 999
15 1111
16 1119
17 1191
18 1199
19 1911
20 1919
21 1991
22 1999
23 9111
24 9119
25 9191
26 9199
27 9911
28 9919
29 9991
30 9999
31 11111
32 11119
33 11191
34 11199
35 11911
36 11919
37 11991
38 11999
39 19111
40 19119
41 19191
42 19199
43 19911
44 19919

List of values

[1, 9, 11, 19, 91, 99, 111, 119, 191, 199, 911, 919, 991, 999, 1111, 1119, 1191, 1199, 1911, 1919, 1991, 1999, 9111, 9119, 9191, 9199, 9911, 9919, 9991, 9999, 11111, 11119, 11191, 11199, 11911, 11919, 11991, 11999, 19111, 19119, 19191, 19199, 19911, 19919]

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

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