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 A198511 T(n,k)=Number of 2nX2k 0..4 arrays with values 0..4 introduced in row major order and each element unequal to exactly two horizontal and vertical neighbors 3
 4, 59, 59, 1626, 4666, 1626, 52065, 308854, 308854, 52065, 1720080, 23016128, 59007820, 23016128, 1720080, 57202471, 1768050096, 13127875861, 13127875861, 1768050096, 57202471, 1905005414, 137433138206, 3023133941944 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts ........4.........59........1626.......52065.......1720080.....57202471 .......59.......4666......308854....23016128....1768050096.137433138206 .....1626.....308854....59007820.13127875861.3023133941944 ....52065...23016128.13127875861 ..1720080.1768050096 .57202471 LINKS Table of n, a(n) for n=1..24. EXAMPLE Some solutions for n=3 k=2 0..1..1..0....0..1..0..2....0..1..1..2....0..1..1..0....0..1..1..0 2..3..3..4....2..1..0..0....1..3..3..1....1..2..2..3....2..3..3..1 2..3..3..4....2..1..1..1....1..3..3..1....1..2..2..3....2..3..3..1 4..4..4..2....0..3..3..3....2..2..2..2....2..3..3..2....0..4..4..3 3..3..4..2....0..3..4..4....0..0..1..1....2..3..3..2....0..4..4..3 0..3..4..3....2..3..4..2....2..0..1..0....4..0..0..1....2..1..1..0 CROSSREFS Sequence in context: A155204 A290765 A144992 * A282040 A245827 A200048 Adjacent sequences: A198508 A198509 A198510 * A198512 A198513 A198514 KEYWORD nonn,tabl AUTHOR R. H. Hardin Oct 25 2011 STATUS approved

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Last modified August 10 09:30 EDT 2024. Contains 375044 sequences. (Running on oeis4.)