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A232261 Number of (4+1)X(n+1) 0..2 arrays with every element both >= and <= some horizontal or antidiagonal neighbor 2
723, 52779, 4987471, 544777651, 60698037193, 6678855359891, 736185965972615, 81157499885585233, 8946595022473277457, 986241983067967479191, 108719927841904034425147, 11984921734705824859993765 (list; graph; refs; listen; history; text; internal format)
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

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Last modified July 2 21:48 EDT 2022. Contains 355029 sequences. (Running on oeis4.)