A186784 - OEIS

A186784

Number of (n+1)X3 0..3 arrays with every 2X2 subblock determinant equal to exactly one or two horizontal and vertical neighbor 2X2 subblock determinants

580, 11354, 63504, 739334, 8499038, 97501656, 1029483706, 11412065338, 126395136040, 1397513210452, 15414550870912, 170592128024378, 1886912171155070, 20866267731905124, 230752006350156298

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OFFSET

1,1

COMMENTS

Column 2 of A186786

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..200

EXAMPLE

Some solutions for 5X3

..2..0..1....3..0..0....1..0..2....2..0..1....1..0..0....2..0..1....0..0..1

..0..0..0....0..0..2....0..0..0....0..0..1....0..0..0....1..0..0....0..0..0

..0..3..0....0..1..2....2..3..1....2..1..1....1..2..2....2..2..0....3..1..1