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.

A220756 Number of n X n arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random 0..3 n X n array.

Original entry on oeis.org

4, 28, 4328, 548130, 1383229596, 3442732323766, 136599937752568134
Offset: 1

Views

Author

R. H. Hardin Dec 19 2012

Keywords

Comments

Diagonal of A220761

Examples

			Some solutions for n=3
..2..1..2....0..0..3....2..1..1....3..0..1....1..0..1....2..1..3....2..1..3
..3..0..1....1..0..0....2..0..1....1..0..0....0..0..3....1..1..2....1..1..1
..0..0..3....1..0..1....2..0..0....0..0..0....2..0..2....3..1..1....1..1..1