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 A183782 T(n,k)=Half the number of (n+1)X(k+1) binary arrays with no 2X2 subblock having exactly 2 ones 10
 5, 13, 13, 33, 47, 33, 85, 161, 161, 85, 217, 567, 730, 567, 217, 557, 1969, 3435, 3435, 1969, 557, 1425, 6887, 15887, 21935, 15887, 6887, 1425, 3653, 24001, 74148, 136843, 136843, 74148, 24001, 3653, 9353, 83799, 344483, 864671, 1146964, 864671, 344483 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts .....5......13.......33.........85.........217...........557...........1425 ....13......47......161........567........1969..........6887..........24001 ....33.....161......730.......3435.......15887.........74148.........344483 ....85.....567.....3435......21935......136843........864671........5431499 ...217....1969....15887.....136843.....1146964.......9764363.......82573675 ...557....6887....74148.....864671.....9764363.....112439612.....1284649009 ..1425...24001...344483....5431499....82573675....1284649009....19815396763 ..3653...83799..1604473...34228999...701022093...14750484447...307446383061 ..9353..292305..7462786..215374371..5941108591..169027656900..4760294305144 .23965.1020103.34738575.1356329167.50402814448.1939448495087.73819487702999 LINKS R. H. Hardin, Table of n, a(n) for n = 1..364 EXAMPLE Some solutions with a(1,1)=0 for 4X3 ..0..0..1....0..0..1....0..0..0....0..0..0....0..0..1....0..0..1....0..1..1 ..1..0..0....0..0..0....0..1..0....0..0..0....0..1..1....0..0..0....1..1..1 ..0..0..1....1..0..1....1..1..1....1..0..1....1..1..0....0..0..0....0..1..1 ..0..0..0....0..0..0....1..1..1....1..1..1....1..0..0....0..1..0....0..0..1 CROSSREFS Sequence in context: A151994 A321992 A231806 * A341751 A244435 A134202 Adjacent sequences:  A183779 A183780 A183781 * A183783 A183784 A183785 KEYWORD nonn,tabl AUTHOR R. H. Hardin Jan 07 2011 STATUS approved

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Last modified September 24 09:10 EDT 2021. Contains 347630 sequences. (Running on oeis4.)