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.

A263692 Number of length n arrays of permutations of 0..n-1 with each element moved by -3 to 3 places and every three consecutive elements having its maximum within 3 of its minimum.

Table of values

n a(n)
1 1
2 2
3 6
4 24
5 18
6 18
7 24
8 40
9 64
10 100
11 144
12 216
13 324
14 496
15 748
16 1136
17 1712
18 2596
19 3920
20 5940
21 8976
22 13592
23 20548
24 31104
25 47036
26 71184
27 107664
28 162916
29 246432
30 372868
31 564048
32 853400
33 1291012
34 1953232
35 2954892
36 4470512
37 6763184
38 10232036
39 15479600

List of values

[1, 2, 6, 24, 18, 18, 24, 40, 64, 100, 144, 216, 324, 496, 748, 1136, 1712, 2596, 3920, 5940, 8976, 13592, 20548, 31104, 47036, 71184, 107664, 162916, 246432, 372868, 564048, 853400, 1291012, 1953232, 2954892, 4470512, 6763184, 10232036, 15479600]