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Search: id:A083655
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| A083655 |
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Numbers which match in binary Champernowne word (A030190) not before their own bit pattern. |
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+0
3
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| 0, 1, 2, 4, 8, 10, 16, 32, 36, 64, 128, 136, 256, 512, 528, 1024, 2048, 2080, 4096, 8192, 8256, 16384, 32768, 32896, 65536, 131072, 131328, 262144, 524288, 524800, 1048576, 2097152, 2098176, 4194304, 8388608, 8390656, 16777216, 33554432
(list; graph; listen)
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OFFSET
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0,3
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COMMENT
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A083653(a(n))=a(n), A083654(a(n))=1; A000079 is a subsequence.
a(n) are the Base 2 "Punctual Bird" numbers: write the nonnegative integers, base 2, in a string 011011100101110111.... Sequence gives numbers which do not occur in the string ahead of their natural place. - Graeme McRae (g_m(AT)mcraefamily.com), Aug 11 2007
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LINKS
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Graeme McRae (g_m(AT)mcraefamily.com), Aug 11 2007, Table of n, a(n) for n = 0..113
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FORMULA
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a(0)=0, a(1)=1, a(2)=2; then for n>=1, a(3n)=2^(2n), a(3n+1)=2^(2n+1), a(3n+2)=2^(2n+1)+2^n - Graeme McRae (g_m(AT)mcraefamily.com), Aug 11 2007
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CROSSREFS
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Cf. A030304, A007088.
Cf. A131881, A132131.
Sequence in context: A025612 A102248 A045795 this_sequence A097210 A097214 A045579
Adjacent sequences: A083652 A083653 A083654 this_sequence A083656 A083657 A083658
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KEYWORD
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nonn
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AUTHOR
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Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystems.com), May 01 2003
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EXTENSIONS
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More terms from Graeme McRae (g_m(AT)mcraefamily.com), Aug 11 2007
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