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.

A263745 Number of length n arrays of permutations of 0..n-1 with each element moved by -n to n places and every three consecutive elements having its maximum within 5 of its minimum.

Table of values

n a(n)
0 1
1 1
2 2
3 6
4 24
5 120
6 720
7 2400
8 5424
9 11568
10 26796
11 68966
12 198332
13 558032
14 1509568
15 3898288
16 9694608
17 23885448
18 59953920
19 152383072
20 389677200
21 996510496

List of values

[1, 1, 2, 6, 24, 120, 720, 2400, 5424, 11568, 26796, 68966, 198332, 558032, 1509568, 3898288, 9694608, 23885448, 59953920, 152383072, 389677200, 996510496]

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

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