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 A186054 Number of (n+2)X(n+2) binary arrays with each 3X3 subblock having a positive determinant 0
 87, 1217, 26868, 836891, 58408337, 6541274560, 1130708781343, 404252413909581, 239686988190497117, 224842795740772389253, 420525789504469841741415 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A186063 LINKS EXAMPLE Some solutions for 4X4 ..1..1..1..0....1..0..0..1....1..0..1..0....1..1..1..1....0..0..1..1 ..0..0..1..1....1..1..0..1....1..0..0..1....1..1..0..1....1..1..0..0 ..1..0..0..1....1..1..1..0....1..1..1..1....0..1..0..0....0..1..1..0 ..1..1..0..0....1..0..0..1....0..0..1..0....0..1..1..0....0..0..1..1 CROSSREFS Sequence in context: A294907 A093287 A231218 * A082955 A201154 A171344 Adjacent sequences:  A186051 A186052 A186053 * A186055 A186056 A186057 KEYWORD nonn AUTHOR R. H. Hardin Feb 11 2011 STATUS approved

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Last modified October 31 11:50 EDT 2020. Contains 338101 sequences. (Running on oeis4.)