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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.

A320075 Number of length n primitive (=aperiodic or period n) 10-ary words which are earlier in lexicographic order than any other word derived by cyclic shifts of the alphabet.

Table of values

n a(n)
1 1
2 9
3 99
4 990
5 9999
6 99891
7 999999
8 9999000
9 99999900
10 999989991
11 9999999999
12 99999899010
13 999999999999
14 9999998999991
15 99999999989901
16 999999990000000
17 9999999999999999
18 99999999899900100
19 999999999999999999
20 9999999998999999010
21 99999999999998999901

List of values

[1, 9, 99, 990, 9999, 99891, 999999, 9999000, 99999900, 999989991, 9999999999, 99999899010, 999999999999, 9999998999991, 99999999989901, 999999990000000, 9999999999999999, 99999999899900100, 999999999999999999, 9999999998999999010, 99999999999998999901]

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

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