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.

A221253 Number of nX6 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 16
2 2500
3 488601
4 103489929
5 22466712321
6 4919350997521
7 1080371161000000
8 237502965724417600
9 52227958295629168900
10 11486303574511411132081
11 2526218624607638969433649
12 555604441977129578423379025

List of values

[16, 2500, 488601, 103489929, 22466712321, 4919350997521, 1080371161000000, 237502965724417600, 52227958295629168900, 11486303574511411132081, 2526218624607638969433649, 555604441977129578423379025]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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