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 A185609 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock determinant equal to some horizontal or vertical neighbor 2X2 subblock determinant 5
 0, 580, 580, 2366, 11354, 2366, 22236, 172026, 172026, 22236, 118616, 3017724, 4473352, 3017724, 118616, 891506, 50646550, 173403770, 173403770, 50646550, 891506, 5489048, 873299900, 5539941616, 15211806726, 5539941616, 873299900 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Table starts ........0.........580.........2366.........22236........118616.......891506 ......580.......11354.......172026.......3017724......50646550....873299900 .....2366......172026......4473352.....173403770....5539941616.195867482580 ....22236.....3017724....173403770...15211806726.1112996493332 ...118616....50646550...5539941616.1112996493332 ...891506...873299900.195867482580 ..5489048.14968118872 .38326452 LINKS R. H. Hardin, Table of n, a(n) for n = 1..39 EXAMPLE Some solutions for 4X3 ..1..0..0....1..0..1....2..0..0....0..2..1....1..0..3....3..0..0....0..0..0 ..0..0..2....0..0..0....3..0..3....0..0..0....0..0..1....1..0..3....1..0..2 ..2..0..3....0..0..0....0..0..0....0..0..0....1..0..1....1..0..2....0..0..0 ..2..0..2....0..3..2....1..0..3....1..0..3....0..0..0....2..0..3....1..2..1 CROSSREFS Sequence in context: A252985 A097769 A186786 * A127694 A185605 A186784 Adjacent sequences:  A185606 A185607 A185608 * A185610 A185611 A185612 KEYWORD nonn,tabl AUTHOR R. H. Hardin Jan 31 2011 STATUS approved

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Last modified January 22 10:48 EST 2021. Contains 340362 sequences. (Running on oeis4.)