A224307 Number of nX5 0..2 arrays with diagonals and rows unimodal and antidiagonals nondecreasing.

86, 1915, 20214, 164514, 1258372, 9829605, 80083648, 677557164, 5882182248, 51821072499, 459888653374, 4094603418389, 36504683598749, 325625769512292, 2905345619322972, 25926555852863165, 231390081746732292

Offset: 1

Author

R. H. Hardin Apr 03 2013

Keywords

• nonn

Comments

Column 5 of A224310

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210
• R. H. Hardin, Empirical recurrence of order 61

Formula

Empirical recurrence of order 61 (see link above)