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 A186796 T(n,k)=Half the number of (n+2)X(k+2) binary arrays with each 3X3 subblock having a sum in 2..7 10
 246, 1910, 1910, 14825, 29020, 14825, 115069, 440505, 440505, 115069, 893145, 6687805, 13066921, 6687805, 893145, 6932452, 101532811, 387763760, 387763760, 101532811, 6932452, 53808589, 1541462868, 11506373601, 22495797451 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts .........246...........1910..............14825................115069 ........1910..........29020.............440505...............6687805 .......14825.........440505...........13066921.............387763760 ......115069........6687805..........387763760...........22495797451 ......893145......101532811........11506373601.........1304974153960 .....6932452.....1541462868.......341441530745........75702797880635 ....53808589....23402344941.....10131963654512......4391582264258067 ...417653681...355292192013....300656729278809....254759386224257430 ..3241761282..5394012633636...8921712703662435..14778806361675616311 .25162034228.81891392695720.264743644646633613.857331004466757829463 LINKS R. H. Hardin, Table of n, a(n) for n = 1..144 EXAMPLE Some solutions for 5X4 with a(1,1)=0 ..0..0..0..1....0..0..0..1....0..0..0..0....0..0..0..0....0..0..0..0 ..0..0..1..0....1..1..1..1....0..1..1..0....1..1..1..0....0..0..0..1 ..1..1..1..1....0..1..1..0....1..1..0..1....1..0..0..1....1..1..0..0 ..1..0..0..0....0..0..1..1....1..1..0..0....0..0..0..1....1..1..1..1 ..0..1..0..0....0..1..1..1....1..0..0..1....0..1..0..1....0..0..1..1 CROSSREFS Sequence in context: A231965 A067916 A229577 * A186788 A074995 A251524 Adjacent sequences: A186793 A186794 A186795 * A186797 A186798 A186799 KEYWORD nonn,tabl AUTHOR R. H. Hardin Feb 26 2011 STATUS approved

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Last modified April 19 12:14 EDT 2024. Contains 371792 sequences. (Running on oeis4.)