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.

A223825 Number of n X n 0..2 arrays with rows and columns unimodal.

Original entry on oeis.org

3, 81, 6166, 738482, 111026387, 18986502099, 3529435151262, 698068937559304
Offset: 1

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Author

R. H. Hardin Mar 27 2013

Keywords

Comments

Diagonal of A223831

Examples

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

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