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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 A256519

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 March 31 19:16 EDT 2020. Contains 333151 sequences. (Running on oeis4.)