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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.)