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.

A221259 Number of 5Xn arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, with no occupancy greater than 2.

Table of values

n a(n)
1 0
2 256
3 418
4 1612900
5 78633756
6 22466712321
7 2294073688498
8 399487764096100
9 51031822108216122
10 7730096571419434884
11 1061888266253693915768
12 154122481474602369093121
13 21681358901642544133423968

List of values

[0, 256, 418, 1612900, 78633756, 22466712321, 2294073688498, 399487764096100, 51031822108216122, 7730096571419434884, 1061888266253693915768, 154122481474602369093121, 21681358901642544133423968]