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 A221062 T(n,k)=Equals one maps: number of nXk binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal and antidiagonal neighbors in a random 0..3 nXk array 6
 1, 2, 1, 4, 8, 1, 8, 37, 32, 1, 16, 172, 323, 128, 1, 32, 771, 3322, 2735, 512, 1, 64, 3392, 29939, 58710, 22683, 2048, 1, 128, 14569, 254900, 1016831, 989020, 185563, 8192, 1, 256, 61210, 2080204, 16715282, 33166449, 16261308, 1503659, 32768, 1, 512, 252491 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Table starts .1.....2.......4........8.......16.......32......64......128....256.512 .1.....8......37......172......771.....3392...14569....61210.252491 .1....32.....323.....3322....29939...254900.2080204.16745866 .1...128....2735....58710..1016831.16715282 .1...512...22683...989020.33166449 .1..2048..185563.16261308 .1..8192.1503659 .1.32768 .1 LINKS R. H. Hardin, Table of n, a(n) for n = 1..48 EXAMPLE Some solutions for n=3 k=4 ..0..0..1..1....1..0..1..1....1..1..1..1....0..0..1..0....1..0..0..0 ..0..0..0..1....1..0..0..0....0..1..0..0....0..0..1..0....1..1..1..1 ..0..1..0..1....0..0..0..0....0..1..1..1....1..1..1..1....0..1..0..1 CROSSREFS Column 2 is A004171(n-1) Row 1 is A000079(n-1) Sequence in context: A330787 A128412 A221660 * A220916 A221632 A071951 Adjacent sequences: A221059 A221060 A221061 * A221063 A221064 A221065 KEYWORD nonn,tabl AUTHOR R. H. Hardin Dec 31 2012 STATUS approved

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Last modified June 10 03:49 EDT 2023. Contains 363187 sequences. (Running on oeis4.)