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A161979
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a(1)=1. a(n) = the smallest integer > a(n-1) containing {the string made by reversing the order of the binary digits of n, and removing leading 0's} as a substring when a(n) is written in binary.
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2
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1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 13, 14, 22, 23, 30, 31, 34, 36, 50, 52, 53, 54, 58, 59, 76, 86, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 105, 114, 115, 116, 148, 149, 181, 182, 183, 186, 189, 190, 198, 204, 205, 214, 215, 216, 236, 237, 295, 302, 311, 316, 350, 351, 382
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OFFSET
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1,2
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LINKS
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EXAMPLE
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13 in binary is 1101, which reversed is 1011. a(13) = the smallest integer > a(12)=14 that contains the string 1011 as a substring in its binary representation. a(13) therefore equals 22, which is 10110 in binary.
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CROSSREFS
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KEYWORD
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base,nonn
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AUTHOR
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EXTENSIONS
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Corrected and extended by Sean A. Irvine and Jasper Mulder (jasper.mulder(AT)planet.nl), Oct 04 2009
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STATUS
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approved
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