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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.

A265865 Number of 4Xn arrays containing n copies of 0..4-1 with no element plus any vertical neighbor equal to 4-1.

Table of values

n a(n)
1 8
2 384
3 22016
4 1584088
5 124214208
6 10318543104
7 891453176832
8 79282110189528
9 7210026166925504
10 667397938420086784
11 62673274464982136832
12 5956095271996318830016
13 571751372700932605781504

List of values

[8, 384, 22016, 1584088, 124214208, 10318543104, 891453176832, 79282110189528, 7210026166925504, 667397938420086784, 62673274464982136832, 5956095271996318830016, 571751372700932605781504]

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

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