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.

A265452 Number of nX2 0..n+2-2 arrays with each element differing from its horizontal and vertical neighbors by one or two.

Table of values

n a(n)
1 2
2 18
3 250
4 3358
5 42282
6 502154
7 5710302
8 62782966
9 672520310
10 7056533978
11 72819524370
12 741279145398
13 7460955607878
14 74381377429158
15 735539563061590
16 7222916531541006
17 70499118369836786
18 684459097597365542

List of values

[2, 18, 250, 3358, 42282, 502154, 5710302, 62782966, 672520310, 7056533978, 72819524370, 741279145398, 7460955607878, 74381377429158, 735539563061590, 7222916531541006, 70499118369836786, 684459097597365542]

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

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