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 A236081 Number of (n+1) X (5+1) 0..2 arrays with the sum of each 2 X 2 subblock maximum and minimum lexicographically nondecreasing rowwise and columnwise. 1
 167892, 40097396, 10003171144, 2353737191047, 558542932337300, 126138961904040570, 27744841719671138194, 5832339695757183406469, 1183186252204989571469409, 230924323943367731755228208 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 5 of A236082. LINKS R. H. Hardin, Table of n, a(n) for n = 1..18 EXAMPLE Some solutions for n=1 ..0..0..2..0..0..1....0..0..0..1..1..2....1..0..2..0..2..1....1..0..0..0..1..2 ..0..1..2..2..2..2....1..0..1..2..0..0....0..2..0..0..2..2....1..0..2..1..2..0 CROSSREFS Cf. A236082. Sequence in context: A262802 A247994 A235741 * A140941 A186550 A151618 Adjacent sequences: A236078 A236079 A236080 * A236082 A236083 A236084 KEYWORD nonn AUTHOR R. H. Hardin, Jan 19 2014 STATUS approved

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Last modified May 19 07:05 EDT 2024. Contains 372666 sequences. (Running on oeis4.)