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 A206472 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock having zero permanent 8
 25, 121, 121, 441, 1411, 441, 1849, 11025, 11025, 1849, 7225, 106891, 110889, 106891, 7225, 29241, 958441, 1896129, 1896129, 958441, 29241, 116281, 8963667, 23707161, 68352739, 23707161, 8963667, 116281, 466489, 82609921, 356190129, 1693734025 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts .....25.......121.........441...........1849.............7225 ....121......1411.......11025.........106891...........958441 ....441.....11025......110889........1896129.........23707161 ...1849....106891.....1896129.......68352739.......1693734025 ...7225....958441....23707161.....1693734025......61244865529 ..29241...8963667...356190129....52552339515....3420616959081 .116281..82609921..4803737481..1457044540561..144660587865049 .466489.767387611.69030731169.43214597865811.7310031634630729 LINKS R. H. Hardin, Table of n, a(n) for n = 1..684 EXAMPLE Some solutions for n=4 k=3 ..0..2..0..2....0..0..0..1....2..0..1..2....2..2..0..0....1..2..0..0 ..0..1..0..0....1..0..0..1....1..0..0..0....0..0..0..1....0..0..0..2 ..0..2..0..1....0..0..0..0....1..0..2..0....2..0..0..0....1..0..0..0 ..0..0..0..0....1..2..0..1....1..0..0..0....2..0..0..1....0..0..1..0 ..0..2..2..2....0..0..0..1....0..0..2..1....2..0..0..2....1..0..2..0 CROSSREFS Column 1 is A139818(n+3) Sequence in context: A126412 A078815 A270368 * A036057 A083509 A343075 Adjacent sequences: A206469 A206470 A206471 * A206473 A206474 A206475 KEYWORD nonn,tabl AUTHOR R. H. Hardin Feb 08 2012 STATUS approved

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Last modified September 22 18:47 EDT 2023. Contains 365531 sequences. (Running on oeis4.)