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 A251478 Number of (n+1)X(4+1) 0..3 arrays with every 2X2 subblock summing to a prime and those sums nondecreasing in every row and column 1
 12670, 123739, 1096596, 7485767, 48046512, 261990105, 1374831443, 6492635940, 29922945960, 128376366657, 542148465879, 2177044477138, 8653751344617, 33172911909577, 126371883761749, 468816840146963, 1733460732539026 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 4 of A251481 LINKS R. H. Hardin, Table of n, a(n) for n = 1..87 EXAMPLE Some solutions for n=2 ..0..1..0..0..1....1..0..0..0..1....0..1..1..1..1....2..0..2..3..2 ..1..0..1..1..3....1..0..2..0..1....1..0..1..0..3....0..0..1..1..1 ..0..2..2..3..0....0..1..0..1..1....2..0..2..2..2....0..3..3..2..3 CROSSREFS Sequence in context: A119076 A251099 A252351 * A159203 A254799 A254806 Adjacent sequences: A251475 A251476 A251477 * A251479 A251480 A251481 KEYWORD nonn AUTHOR R. H. Hardin, Dec 02 2014 STATUS approved

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Last modified July 14 05:06 EDT 2024. Contains 374291 sequences. (Running on oeis4.)