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.

A223844 Number of n X n 0..3 arrays with rows and columns unimodal.

Original entry on oeis.org

4, 256, 64660, 32464394, 24291817048, 23571122875874, 27578655986218632, 37359132548315097216
Offset: 1

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Author

R. H. Hardin Mar 27 2013

Keywords

Comments

Diagonal of A223850

Examples

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

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