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A186057 Number of (n+2)X5 binary arrays with each 3X3 subblock having a positive determinant 1
792, 5050, 26868, 128303, 743667, 3894282, 19416799, 109272739, 574576902, 2902540637, 16077234286, 84997177389, 432488680193, 2368938184744, 12575903584335, 64351855121584, 349481604164871, 1860335476319039 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A186063

LINKS

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

EXAMPLE

Some solutions for 4X5

..0..1..1..1..1....1..0..0..1..1....0..0..1..0..0....1..1..1..0..1

..1..0..1..1..0....1..1..0..0..1....1..0..0..1..0....1..0..0..1..0

..1..0..0..1..0....0..1..1..0..0....0..1..0..1..1....1..1..0..1..1

..1..1..0..1..1....1..0..1..1..1....0..0..1..1..1....0..1..1..1..0

CROSSREFS

Sequence in context: A351670 A282547 A104398 * A027817 A104680 A037190

Adjacent sequences:  A186054 A186055 A186056 * A186058 A186059 A186060

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 11 2011

STATUS

approved

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Last modified June 29 05:01 EDT 2022. Contains 354910 sequences. (Running on oeis4.)