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.

A282787 Number of n X 4 0..1 arrays with no 1 equal to more than one of its king-move neighbors, with the exception of exactly one element.

Table of values

n a(n)
1 2
2 16
3 318
4 1952
5 16584
6 119176
7 832218
8 5780340
9 39020884
10 260919192
11 1725189008
12 11301829056
13 73518360532
14 475188725292
15 3055000301306
16 19549420762100
17 124588203699132
18 791140457595836
19 5007656160113482
20 31605725372441888

List of values

[2, 16, 318, 1952, 16584, 119176, 832218, 5780340, 39020884, 260919192, 1725189008, 11301829056, 73518360532, 475188725292, 3055000301306, 19549420762100, 124588203699132, 791140457595836, 5007656160113482, 31605725372441888]

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

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