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.

A292574 Number of permutations p of {1,2,...,n} such that p(i)-i not in {-1,0,1,2}.

Table of values

n a(n)
0 1
1 0
2 0
3 0
4 0
5 1
6 6
7 58
8 499
9 4814
10 50284
11 572228
12 7050770
13 93637691
14 1334156612
15 20308818956
16 329025006637
17 5653813150732
18 102722614426328
19 1967763318700136
20 39640921470181124
21 837836538203311613
22 18539041315706787978
23 428620090892592760870

List of values

[1, 0, 0, 0, 0, 1, 6, 58, 499, 4814, 50284, 572228, 7050770, 93637691, 1334156612, 20308818956, 329025006637, 5653813150732, 102722614426328, 1967763318700136, 39640921470181124, 837836538203311613, 18539041315706787978, 428620090892592760870]