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A048787
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Write n in base 3 then rotate left one place.
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11
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1, 2, 1, 4, 7, 2, 5, 8, 1, 4, 7, 10, 13, 16, 19, 22, 25, 2, 5, 8, 11, 14, 17, 20, 23, 26, 1, 4, 7, 10, 13, 16, 19, 22, 25, 28, 31, 34, 37, 40, 43, 46, 49, 52, 55, 58, 61, 64, 67, 70, 73, 76, 79, 2, 5, 8, 11, 14, 17, 20, 23, 26, 29, 32, 35, 38, 41, 44, 47, 50, 53, 56, 59, 62, 65, 68
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OFFSET
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1,2
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COMMENTS
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A={a(n)} is self-similar in the sense that the subsequence remaining after deleting the first occurrence of each integer is identical to the original sequence A (Kimberling's "upper-trimming" operation).
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LINKS
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EXAMPLE
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a(33)=19 since 33 = 1020(base 3) -> 0201(base 3) = 19.
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MATHEMATICA
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Table[ FromDigits[ RotateLeft[ IntegerDigits[n, 3]], 3], {n, 1, 76}] - Zerinvary Lajos, Mar 25 2007
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PROG
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(Python)
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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STATUS
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approved
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