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A080905
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Sequence of run lengths in first differences of A080900.
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2
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4, 1, 4, 1, 4, 1, 2, 1, 1, 1, 2, 1, 4, 1, 4, 1, 2, 1, 1, 1, 2, 1, 4, 1, 4, 1, 2, 1, 1, 1, 2, 1, 2, 1, 1, 2, 1, 1, 2, 1, 2, 1, 1, 1, 2, 1, 4, 1, 4, 1, 2, 1, 1, 1, 2, 1, 4, 1, 4, 1, 2, 1, 1, 1, 2, 1, 2, 1, 1, 2, 1, 1, 2, 1, 2, 1, 1, 1, 2, 1, 4, 1, 4, 1, 2, 1, 1, 1, 2, 1, 4, 1, 4, 1, 2, 1, 1, 1, 2
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OFFSET
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1,1
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COMMENTS
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Even after 400000 terms there is no clear pattern here.
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LINKS
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Table of n, a(n) for n=1..99.
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EXAMPLE
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A080900 begins 1, 6, 11, 16, 21, 19, 24, 29, 34, 39, 37, 42, 47, 52, 57, 55, 60, 65, ..., the differences are 5, 5, 5, 5, -2, 5, 5, 5, 5, -2, ... with runs of lengths 4, 1, 4, 1, ...
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CROSSREFS
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Cf. A080900, A080922, A080927.
Sequence in context: A030748 A144865 A096622 * A010685 A174571 A099301
Adjacent sequences: A080902 A080903 A080904 * A080906 A080907 A080908
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane, Apr 01 2003
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STATUS
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approved
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