A232261 Number of (4+1)X(n+1) 0..2 arrays with every element both >= and <= some horizontal or antidiagonal neighbor

723, 52779, 4987471, 544777651, 60698037193, 6678855359891, 736185965972615, 81157499885585233, 8946595022473277457, 986241983067967479191, 108719927841904034425147, 11984921734705824859993765

Offset

1,1

Comments

Row 4 of A232257

Links

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

Example

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

Crossrefs

Sequence in context: A231485 A035756 A107552 * A248484 A247894 A023680

Adjacent sequences: A232258 A232259 A232260 * A232262 A232263 A232264

Keyword

nonn

Author

R. H. Hardin, Nov 21 2013

Status

approved