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 A187354 Number of (n+2)X3 0..3 arrays with every 2X2 subblock sum equal to some diagonal or antidiagonal neighbor 2X2 subblock sum 1
 5056, 7776, 440192, 2332924, 52776112, 460096436, 7500948108, 81056245820, 1156120104976, 13724956896132, 184898111031588, 2289480339888852, 30076021725983316, 379711139922795776, 4931568342034316252 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 1 of A187356 LINKS R. H. Hardin, Table of n, a(n) for n = 1..200 EXAMPLE Some solutions for 4X3 ..3..0..3....1..0..0....2..2..0....0..0..3....1..1..2....2..2..1....1..1..3 ..2..2..2....0..3..1....2..0..3....3..3..1....1..1..1....2..1..3....1..2..0 ..3..0..3....1..0..0....2..1..2....0..1..1....3..0..2....2..2..1....1..2..1 ..3..1..3....0..3..1....3..0..2....3..2..3....0..1..2....1..2..2....0..2..1 CROSSREFS Sequence in context: A155145 A281679 A187356 * A160757 A046169 A209782 Adjacent sequences: A187351 A187352 A187353 * A187355 A187356 A187357 KEYWORD nonn AUTHOR R. H. Hardin Mar 08 2011 STATUS approved

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Last modified July 18 07:53 EDT 2024. Contains 374377 sequences. (Running on oeis4.)