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.

A208427 Number of n X n 0..2 arrays with new values 0..2 introduced in row major order and no element equal to any knight-move neighbor (colorings ignoring permutations of colors).

Table of values

n a(n)
1 1
2 14
3 129
4 1292
5 50507
6 3673572
7 509698666
8 148054300100
9 84623199773631
10 95553867727723732

List of values

[1, 14, 129, 1292, 50507, 3673572, 509698666, 148054300100, 84623199773631, 95553867727723732]

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

Content is available under The OEIS End-User License Agreement.