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.

A263642 Number of length n arrays of permutations of 0..n-1 with each element moved by -7 to 7 places and with no two consecutive increases.

Table of values

n a(n)
1 1
2 2
3 5
4 17
5 70
6 349
7 2017
8 13358
9 74678
10 335720
11 1500041
12 6440272
13 28038374
14 123298684
15 556103807
16 2564034001
17 11893926843
18 55032401086
19 253092976011
20 1160780168755
21 5299878003384
22 24174899648334
23 110233336977738

List of values

[1, 2, 5, 17, 70, 349, 2017, 13358, 74678, 335720, 1500041, 6440272, 28038374, 123298684, 556103807, 2564034001, 11893926843, 55032401086, 253092976011, 1160780168755, 5299878003384, 24174899648334, 110233336977738]

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

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