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.

A221924 Number of nX4 arrays of occupancy after each element stays put or moves to some king-move neighbor, without move-in move-out straight through or left turns.

Table of values

n a(n)
1 13
2 3487
3 508281
4 75313013
5 11143187999
6 1648683705320
7 243924224883451
8 36085841660921104
9 5338383610734905950
10 789733272292081157838

List of values

[13, 3487, 508281, 75313013, 11143187999, 1648683705320, 243924224883451, 36085841660921104, 5338383610734905950, 789733272292081157838]

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

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