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.

A207757 Number of n X n 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 1 1 and 1 0 1 vertically.

Table of values

n a(n)
1 2
2 16
3 82
4 663
5 6552
6 56651
7 887114
8 17141340
9 265932767
10 7838599272
11 322656587622
12 9334787856534
13 545237703029106
14 50069011902134767
15 2724265960028933880
16 333854434181630056441
17 70233064417444890074531

List of values

[2, 16, 82, 663, 6552, 56651, 887114, 17141340, 265932767, 7838599272, 322656587622, 9334787856534, 545237703029106, 50069011902134767, 2724265960028933880, 333854434181630056441, 70233064417444890074531]

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

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