A250615 Number of (n+1)X(3+1) 0..2 arrays with nondecreasing maximum of every two consecutive values in every row and column

2704, 71610, 1690656, 32944614, 595652178, 9955305702, 159191945604, 2447786874761, 36658965039940, 537101491175460, 7742699987325454, 110146944374439952, 1550863271320446778, 21652702233916294607

Offset

1,1

Comments

Column 3 of A250620

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

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

Crossrefs

Sequence in context: A254813 A358430 A270542 * A193172 A367668 A281838

Adjacent sequences: A250612 A250613 A250614 * A250616 A250617 A250618

Keyword

nonn

Author

R. H. Hardin, Nov 26 2014

Status

approved