A232299 Number of 5Xn 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally or antidiagonally

1, 1727, 240241, 25116353, 2885285507, 339565321435, 39660722273643, 4626194825153697, 539876319125367771, 63007847133734278905, 7353315697711530754635, 858164092027643141044841

Offset

1,2

Comments

Row 5 of A232295

Links

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

Example

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

Crossrefs

Sequence in context: A271045 A031814 A020427 * A280841 A305474 A302142

Adjacent sequences: A232296 A232297 A232298 * A232300 A232301 A232302

Keyword

nonn

Author

R. H. Hardin, Nov 22 2013

Status

approved