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Search: id:A119435
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| A119435 |
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a(n) = (binary reversal of n)th integer among those positive integers not occurring earlier in the sequence. |
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+0
2
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| 1, 2, 5, 3, 9, 7, 13, 4, 17, 12, 23, 10, 22, 18, 29, 6, 33, 24, 43, 16, 40, 31, 51, 14, 41, 30, 53, 25, 49, 38, 61, 8, 65, 45, 83, 32, 76, 58, 95, 21, 74, 55, 94, 42, 87, 68, 107, 19, 78, 56, 100, 39, 91, 70, 113, 34, 89, 66, 112, 52, 104, 81, 125, 11, 129, 86, 163, 60, 148
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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This sequence is a permutation of the positive integers.
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LINKS
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Diana Mecum, Table of n, a(n) for n = 1..1000
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EXAMPLE
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12 in binary is 1100; so its binary reversal is 0011, which is 3 in decimal. Those positive integers not among the first 11 terms of the sequence form the sequence 6,8,10,11,14,... Now 10 is the third of these terms so a(12) = 10.
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CROSSREFS
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Cf. A119436, A030101.
Adjacent sequences: A119432 A119433 A119434 this_sequence A119436 A119437 A119438
Sequence in context: A026201 A026219 A122281 this_sequence A044043 A133128 A057337
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KEYWORD
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easy,nonn
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AUTHOR
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Leroy Quet (qq-quet(AT)mindspring.com), May 19 2006
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EXTENSIONS
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More terms from Diana Mecum (diana.mecum(AT)gmail.com), Jul 21 2008
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