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A221684
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Number of 0..n arrays of length 5 with each element differing from at least one neighbor by 1 or less, starting with 0
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1
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16, 40, 68, 100, 133, 166, 199, 232, 265, 298, 331, 364, 397, 430, 463, 496, 529, 562, 595, 628, 661, 694, 727, 760, 793, 826, 859, 892, 925, 958, 991, 1024, 1057, 1090, 1123, 1156, 1189, 1222, 1255, 1288, 1321, 1354, 1387, 1420, 1453, 1486, 1519, 1552, 1585
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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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FORMULA
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Empirical: a(n) = 33*n - 32 for n>3
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EXAMPLE
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Some solutions for n=6
..0....0....0....0....0....0....0....0....0....0....0....0....0....0....0....0
..1....1....1....0....0....1....1....1....1....1....1....1....1....0....0....0
..2....2....0....1....5....2....4....2....0....6....1....6....2....1....2....5
..5....4....1....5....5....2....4....4....0....6....2....6....1....2....1....6
..6....5....1....4....6....1....4....4....1....5....1....6....2....1....0....6
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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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