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 A188706 T(n,k)=Number of nXk binary arrays without the pattern 0 0 diagonally or vertically 13
 2, 4, 3, 8, 8, 5, 16, 21, 21, 8, 32, 55, 90, 49, 13, 64, 144, 387, 304, 120, 21, 128, 377, 1665, 1876, 1141, 288, 34, 256, 987, 7164, 11556, 10857, 4084, 697, 55, 512, 2584, 30825, 71152, 103484, 57665, 14925, 1681, 89, 1024, 6765, 132633, 438048, 986929 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts ...2....4......8.......16.........32...........64............128 ...3....8.....21.......55........144..........377............987 ...5...21.....90......387.......1665.........7164..........30825 ...8...49....304.....1876......11556........71152.........438048 ..13..120...1141....10857.....103484.......986929........9413801 ..21..288...4084....57665.....813309.....11462588......161506225 ..34..697..14925...318732....6814290....145764780.....3118943536 ..55.1681..54049..1729531...55337580...1769780565....56585607231 ..89.4060.196508..9464035..456131965..21988745988..1060220669261 .144.9800.713225.51591068.3733374889.270110390804.19540000913840 LINKS R. H. Hardin, Table of n, a(n) for n = 1..840 EXAMPLE Some solutions for 5X3 ..1..1..0....1..0..0....1..0..0....1..1..1....0..1..1....1..1..1....1..0..0 ..1..0..1....1..1..1....1..1..1....0..0..1....1..1..1....1..1..1....1..1..1 ..0..1..1....0..1..1....1..0..0....1..1..1....1..1..0....1..0..1....1..0..1 ..1..1..0....1..1..0....0..1..1....1..1..1....0..1..1....1..1..1....1..1..1 ..0..0..1....0..1..1....1..1..1....1..1..1....1..1..1....0..1..0....1..1..0 CROSSREFS Diagonal is A067964 Column 1 is A000045(n+2) Column 2 is |A077921(n+1)| Row 2 is A001906(n+1) Sequence in context: A355482 A188843 A209406 * A304408 A048767 A269851 Adjacent sequences: A188703 A188704 A188705 * A188707 A188708 A188709 KEYWORD nonn,tabl AUTHOR R. H. Hardin Apr 08 2011 STATUS approved

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Last modified March 24 20:36 EDT 2023. Contains 361510 sequences. (Running on oeis4.)