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.

A223958 Number of nX5 0..3 arrays with antidiagonals unimodal and rows and diagonals nondecreasing.

Original entry on oeis.org

56, 1876, 36028, 594286, 9779558, 163752797, 2772658693, 47273211674, 809416786834, 13894273785956, 238867008057298, 4110191305837227, 70761275087518799, 1218613301433676245, 20990363391641556709
Offset: 1

Views

Author

R. H. Hardin Mar 29 2013

Keywords

Comments

Column 5 of A223961

Examples

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

Formula

Empirical recurrence of order 63 (see link above)