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.

A287827 Number of sequences over the alphabet {0,1,...,9} such that no two consecutive terms have distance 3.

Table of values

n a(n)
0 1
1 10
2 86
3 742
4 6404
5 55274
6 477082
7 4117804
8 35541714
9 306768722
10 2647791524
11 22853698754
12 197255539962
13 1702558017644
14 14695170558994
15 126837403201602
16 1094762853302164
17 9449150445514434
18 81557794797885642
19 703944119701429084
20 6075903902137709074

List of values

[1, 10, 86, 742, 6404, 55274, 477082, 4117804, 35541714, 306768722, 2647791524, 22853698754, 197255539962, 1702558017644, 14695170558994, 126837403201602, 1094762853302164, 9449150445514434, 81557794797885642, 703944119701429084, 6075903902137709074]

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

Content is available under The OEIS End-User License Agreement.