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.

A221895 Number of nX3 arrays of occupancy after each element stays put or moves to some horizontal, vertical or antidiagonal neighbor, without move-in move-out straight through or left turns.

Table of values

n a(n)
1 6
2 258
3 7667
4 235332
5 7197649
6 220361275
7 6744533268
8 206439650412
9 6318757208626
10 193406107213008
11 5919823712888467
12 181195475755599060
13 5546077402982111186
14 169755753751290765761
15 5195927470447150844696

List of values

[6, 258, 7667, 235332, 7197649, 220361275, 6744533268, 206439650412, 6318757208626, 193406107213008, 5919823712888467, 181195475755599060, 5546077402982111186, 169755753751290765761, 5195927470447150844696]

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

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