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 A221483 T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, without consecutive moves in the same direction 13
 0, 1, 0, 0, 4, 0, 1, 8, 16, 0, 0, 73, 50, 64, 0, 1, 292, 1407, 313, 256, 0, 0, 1713, 11784, 34751, 1980, 1024, 0, 1, 8235, 182524, 802711, 865318, 12494, 4096, 0, 0, 43733, 2017564, 37622097, 48514602, 21576814, 78880, 16384, 0, 1, 220672, 26614749 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,5 COMMENTS Table starts .0.......1........0............1..............0...............1 .0.......4........8...........73............292............1713 .0......16.......50.........1407..........11784..........182524 .0......64......313........34751.........802711........37622097 .0.....256.....1980.......865318.......48514602......6681667775 .0....1024....12494.....21576814.....2942599561...1224264741193 .0....4096....78880....538159483...178388225956.224856636340095 .0...16384...497940..13422938865.10813887700409 .0...65536..3143384.334800425933 .0..262144.19843336 .0.1048576 .0 LINKS R. H. Hardin, Table of n, a(n) for n = 1..85 EXAMPLE Some solutions for n=3 k=4 ..0..1..2..1....1..1..2..2....0..1..0..1....0..2..1..1....0..2..0..0 ..1..2..0..0....0..1..0..0....2..3..1..1....2..0..1..0....2..1..1..1 ..1..1..2..1....1..1..2..1....1..0..2..0....0..2..2..1....1..1..2..1 CROSSREFS Column 2 is A000302(n-1) Sequence in context: A255644 A059678 A079642 * A121408 A186761 A199786 Adjacent sequences:  A221480 A221481 A221482 * A221484 A221485 A221486 KEYWORD nonn,tabl AUTHOR R. H. Hardin Jan 17 2013 STATUS approved

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Last modified October 28 10:21 EDT 2020. Contains 338053 sequences. (Running on oeis4.)