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A190046
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Number of nondecreasing arrangements of 9 numbers in 0..n with the last equal to n and each after the second equal to the sum of one or two of the preceding three
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1
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2, 16, 26, 69, 57, 151, 80, 246, 144, 284, 138, 492, 178, 372, 364, 583, 195, 717, 239, 799, 520, 570, 288, 1314, 399, 716, 601, 1079, 392, 1441, 415, 1278, 751, 909, 723, 1938, 474, 1029, 869, 1981, 515, 1916, 536, 1639, 1380, 1195, 611, 2847, 743, 1776
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OFFSET
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1,1
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=3
..1....1....1....3....2....1....1....0....1....0....1....0....1....0....0....0
..2....1....1....3....3....1....1....1....1....1....3....1....1....1....1....1
..2....1....1....3....3....1....1....1....1....1....3....1....2....1....1....1
..3....1....1....3....3....1....2....1....1....1....3....1....3....2....2....1
..3....1....2....3....3....1....3....1....1....2....3....1....3....2....3....1
..3....2....2....3....3....1....3....1....1....2....3....2....3....3....3....1
..3....3....3....3....3....2....3....2....1....3....3....3....3....3....3....2
..3....3....3....3....3....3....3....3....2....3....3....3....3....3....3....2
..3....3....3....3....3....3....3....3....3....3....3....3....3....3....3....3
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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