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.

A039940 Smallest k for which k, 2k, ... nk all contain the digit 9.

Table of values

n a(n)
1 9
2 49
3 97
4 98
5 98
6 99
7 99
8 99
9 99
10 99
11 99
12 499
13 992
14 993
15 993
16 994
17 994
18 994
19 995
20 995
21 995
22 995
23 996
24 996
25 996
26 996
27 996
28 997
29 997
30 997
31 997
32 997
33 997
34 997
35 997
36 997
37 997
38 998
39 998
40 998
41 998
42 998
43 998
44 998
45 998
46 998
47 998
48 998
49 998
50 998
51 998
52 998
53 998
54 998

List of values

[9, 49, 97, 98, 98, 99, 99, 99, 99, 99, 99, 499, 992, 993, 993, 994, 994, 994, 995, 995, 995, 995, 996, 996, 996, 996, 996, 997, 997, 997, 997, 997, 997, 997, 997, 997, 997, 998, 998, 998, 998, 998, 998, 998, 998, 998, 998, 998, 998, 998, 998, 998, 998, 998]

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

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