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.

A383040 Number of king permutations on n elements avoiding the mesh pattern (12, {(0,1),(0,2),(1,0),(2,0)}).

Table of values

n a(n)
0 1
1 1
2 0
3 0
4 2
5 12
6 78
7 568
8 4674
9 42944
10 436314
11 4860020
12 58914870
13 772330276
14 10888803374
15 164310553184
16 2642525580218
17 45124440536632
18 815438318526482
19 15547317496485932
20 311912067538692126
21 6568399090178800988
22 144867849880285518694
23 3339550150164041194232
24 80315480372245746015970

List of values

[1, 1, 0, 0, 2, 12, 78, 568, 4674, 42944, 436314, 4860020, 58914870, 772330276, 10888803374, 164310553184, 2642525580218, 45124440536632, 815438318526482, 15547317496485932, 311912067538692126, 6568399090178800988, 144867849880285518694, 3339550150164041194232, 80315480372245746015970]