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.

A221926 Number of nX3 arrays of occupancy after each element stays put or moves to some horizontal, diagonal or antidiagonal neighbor, without move-in move-out straight through or left turns.

Table of values

n a(n)
1 6
2 232
3 5748
4 153652
5 4053833
6 107220027
7 2834169558
8 74925759485
9 1980733759947
10 52362769529788
11 1384263535086577
12 36594432454954146
13 967411477937300180
14 25574518045138377146
15 676088703977133126785

List of values

[6, 232, 5748, 153652, 4053833, 107220027, 2834169558, 74925759485, 1980733759947, 52362769529788, 1384263535086577, 36594432454954146, 967411477937300180, 25574518045138377146, 676088703977133126785]