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Search: id:A117509
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| A117509 |
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Numbers with no 1's in base 3, 4, 5 & 6 expansions. |
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+0
1
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| 0, 2, 560, 43760, 163854, 164018, 870899850, 870899852, 870900354, 870900360, 870900362, 870907842, 870907848, 870907850, 870977340, 870977342, 871016994, 871017138, 871017144, 871018188, 871018190, 871018440, 871018442, 871025312
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OFFSET
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1,2
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EXAMPLE
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560 is in the sequence because its base 3, 4, 5 and 6 expansions are 202202, 20300, 4220 and 2332, respectively.
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MAPLE
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a:=proc(n) if member(1, convert(n, base, 3))=false and member(1, convert(n, base, 4))=false and member(1, convert(n, base, 5))=false and member(1, convert(n, base, 6))=false then n else fi end: seq(a(n), n=0..300000); - Emeric Deutsch (deutsch(AT)duke.poly.edu), Jul 25 2006
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CROSSREFS
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Sequence in context: A119780 A120840 A058429 this_sequence A049364 A159529 A163277
Adjacent sequences: A117506 A117507 A117508 this_sequence A117510 A117511 A117512
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KEYWORD
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base,nonn
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AUTHOR
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Zak Seidov (zakseidov(AT)yahoo.com), Apr 26 2006
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EXTENSIONS
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More terms from Joshua Zucker (joshua.zucker(AT)stanfordalumni.org), Aug 12 2006
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