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Search: id:A060372
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| A060372 |
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p(n), positive part of n when n=p(n)-q(n) with p(n), q(n), p(n)+q(n) in A005836, integers written without 2 in base 3. |
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+0
4
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| 0, 1, 3, 3, 4, 9, 9, 10, 9, 9, 10, 12, 12, 13, 27, 27, 28, 27, 27, 28, 30, 30, 31, 27, 27, 28, 27, 27, 28, 30, 30, 31, 36, 36, 37, 36, 36, 37, 39, 39, 40, 81, 81, 82, 81, 81, 82, 84, 84, 85, 81, 81, 82, 81, 81, 82, 84, 84, 85, 90, 90, 91, 90, 90, 91, 93, 93, 94, 81, 81, 82, 81
(list; graph; listen)
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OFFSET
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0,3
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COMMENT
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The graphs of p(n), q(n) are fractals; the graph of p(n)+q(n) is Sierpinski-like.
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EXAMPLE
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Example: 14=27-13=3^3 -(3^0+3^1+3^2), 16=28-12=3^3+3^0 -(3^1+3^2), 20=30-10=3^3+3^1 -(3^0+3^2); 27+13=28+12=30+10=40; 10,12,13, 27, 28, 30 are written without 2 in base 3.
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CROSSREFS
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Cf. A005836, A060373, A060374.
Sequence in context: A049854 A086239 A016605 this_sequence A128036 A045794 A065678
Adjacent sequences: A060369 A060370 A060371 this_sequence A060373 A060374 A060375
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KEYWORD
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easy,nice,nonn
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AUTHOR
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Claude Lenormand (claude.lenormand(AT)free.fr), Apr 02 2001
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