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 A239173 Number of (n+1)X(3+1) 0..2 arrays with no element greater than all horizontal neighbors or equal to all vertical neighbors 1
 98, 514, 9604, 130890, 1876940, 26726740, 381984614, 5442841504, 77654661978, 1107987680604, 15802237635146, 225425167338190, 3215775310811444, 45870835552152286, 654345984389717822, 9334191267457643510 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 3 of A239178 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 R. H. Hardin, Empirical recurrence of order 67 FORMULA Empirical recurrence of order 67 (see link above) EXAMPLE Some solutions for n=4 ..2..2..2..2....1..1..1..1....1..1..1..0....0..1..1..0....0..2..2..1 ..0..1..1..0....2..2..2..0....0..0..2..2....2..2..2..2....1..1..1..0 ..1..1..0..0....1..2..2..0....2..2..2..0....1..1..1..0....0..2..2..1 ..0..0..2..2....0..0..1..1....2..2..1..1....1..2..2..2....2..2..1..0 ..2..2..1..1....1..1..0..0....0..0..0..0....0..1..1..0....0..0..2..2 CROSSREFS Sequence in context: A071319 A263040 A263033 * A233928 A233921 A203083 Adjacent sequences:  A239170 A239171 A239172 * A239174 A239175 A239176 KEYWORD nonn AUTHOR R. H. Hardin, Mar 11 2014 STATUS approved

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Last modified July 4 20:49 EDT 2022. Contains 355086 sequences. (Running on oeis4.)