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 A186840 T(n,k)=Number of (n+2)X(k+2) binary arrays with 3X3 subblock sums nondecreasing rightwards and downwards. 10
 512, 2688, 2688, 14112, 19904, 14112, 74088, 147428, 147428, 74088, 324576, 1075071, 1537476, 1075071, 324576, 1421952, 6019798, 15478835, 15478835, 6019798, 1421952, 6229504, 33731024, 111211414, 209888936, 111211414, 33731024 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts .......512........2688........14112.........74088........324576.......1421952 ......2688.......19904.......147428.......1075071.......6019798......33731024 .....14112......147428......1537476......15478835.....111211414.....798816802 .....74088.....1075071.....15478835.....209888936....1919555447...17494747887 ....324576.....6019798....111211414....1919555447...21242244160..235234097572 ...1421952....33731024....798816802...17494747887..235234097572.3176962520030 ...6229504...188814612...5699887192..156721188699.2571152951156 ..24748736...897952936..32614678623.1078797163411 ..98322424..4272342678.186554693948 .390617891.20338694068 LINKS R. H. Hardin, Table of n, a(n) for n = 1..71 EXAMPLE Some solutions for 5X4 ..0..1..0..1....0..0..1..1....0..1..1..0....0..0..0..0....0..0..0..0 ..1..1..0..1....0..1..0..1....0..1..0..0....0..1..1..0....0..0..0..1 ..0..1..0..0....0..1..1..0....0..0..0..1....1..0..1..1....0..1..0..1 ..0..1..1..0....1..1..1..1....1..1..1..1....0..0..1..1....1..0..1..1 ..1..1..0..1....1..1..0..1....1..0..1..1....1..0..1..1....0..0..0..1 CROSSREFS Sequence in context: A258511 A254998 A254991 * A224643 A186832 A254553 Adjacent sequences:  A186837 A186838 A186839 * A186841 A186842 A186843 KEYWORD nonn,tabl AUTHOR R. H. Hardin, Feb 27 2011 STATUS approved

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Last modified October 22 22:34 EDT 2019. Contains 328335 sequences. (Running on oeis4.)