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A208872
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T(n,k)=Number of nXk 0..3 arrays with new values 0..3 introduced in row major order and no element equal to more than one of its immediate leftward or upward or right-upward antidiagonal neighbors
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14
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1, 2, 2, 5, 12, 5, 15, 136, 143, 15, 51, 1798, 6520, 1979, 51, 187, 24472, 307165, 324682, 28246, 187, 715, 334618, 14493405, 52947540, 16205218, 405481, 715, 2795, 4578580, 683903931, 8624977114, 9130195864, 808928836, 5826959, 2795, 11051, 62655190
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OFFSET
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1,2
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COMMENTS
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Table starts
....1........2.............5................15.....................51
....2.......12...........136..............1798..................24472
....5......143..........6520............307165...............14493405
...15.....1979........324682..........52947540.............8624977114
...51....28246......16205218........9130195864..........5134914951163
..187...405481.....808928836.....1574432811027.......3057224057476808
..715..5826959...40380275500...271499374919883....1820216057105650386
.2795.83752328.2015711853262.46818078167209471.1083724145919960847502
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LINKS
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R. H. Hardin, Table of n, a(n) for n = 1..160
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EXAMPLE
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Some solutions for n=4 k=3
..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..1..0
..1..1..2....1..1..0....1..1..0....1..1..1....1..2..3....1..1..1....0..2..2
..2..1..1....2..1..1....2..2..1....2..2..0....3..0..1....2..0..2....1..3..1
..0..2..1....2..2..1....0..1..3....1..0..1....2..3..2....2..1..0....1..3..2
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CROSSREFS
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Column 1 and row 1 are A007581(n-1)
Sequence in context: A230090 A286465 A208258 * A208581 A233357 A248664
Adjacent sequences: A208869 A208870 A208871 * A208873 A208874 A208875
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KEYWORD
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nonn,tabl
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AUTHOR
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R. H. Hardin Mar 02 2012
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STATUS
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approved
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