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.

A320088 Number of primitive (=aperiodic) 4-ary words with length less than or equal to n 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 4
3 19
4 79
5 334
6 1339
7 5434
8 21754
9 87274
10 349159
11 1397734
12 5590954
13 22368169
14 89472934
15 357908119
16 1431633559
17 5726600854
18 22906403494
19 91625880229
20 366503524969
21 1466015148634
22 5864060611159
23 23456246655574
24 93824986622614
25 375299963333014
26 1501199853398419

List of values

[1, 4, 19, 79, 334, 1339, 5434, 21754, 87274, 349159, 1397734, 5590954, 22368169, 89472934, 357908119, 1431633559, 5726600854, 22906403494, 91625880229, 366503524969, 1466015148634, 5864060611159, 23456246655574, 93824986622614, 375299963333014, 1501199853398419]

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

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