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.

A206877 Number of n X n 0..1 arrays avoiding 0 1 0 horizontally and 1 0 1 vertically.

Table of values

n a(n)
1 2
2 16
3 230
4 6478
5 472412
6 87541530
7 37121455086
8 35861331864570
9 81188767942820548
10 433324879893854403222
11 5417399373066905672590966
12 158241198424834434935170407538
13 10811858970416460513671922192330804

List of values

[2, 16, 230, 6478, 472412, 87541530, 37121455086, 35861331864570, 81188767942820548, 433324879893854403222, 5417399373066905672590966, 158241198424834434935170407538, 10811858970416460513671922192330804]

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

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