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.

A209105 Number of 6Xn 0..2 arrays with new values 0..2 introduced in row major order and no element equal to more than one of its immediate leftward or upward or right-upward antidiagonal neighbors.

Table of values

n a(n)
1 122
2 34096
3 7154944
4 1404480904
5 272236743760
6 52675800891748
7 10191444894367900
8 1971869773009191300
9 381529277930963765396
10 73820911678439362478268
11 14283392072671820658161260

List of values

[122, 34096, 7154944, 1404480904, 272236743760, 52675800891748, 10191444894367900, 1971869773009191300, 381529277930963765396, 73820911678439362478268, 14283392072671820658161260]

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

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