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Search: id:A037430
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| A037430 |
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Numbers n such that the set of base 5 digits of n equals the set of base 7 digits of n. |
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+0
1
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| 1, 2, 3, 4, 17, 51, 66, 102, 416, 423, 557, 687, 697, 739, 785, 842, 889, 1030, 1078, 1087, 1109, 1233, 1374, 1439, 1444, 1477, 1481, 1492, 1499, 1570, 2527, 2566, 2576, 2580, 2601, 2605, 2611, 2625, 2626, 2627, 2628, 2629, 2811, 2871, 2916
(list; graph; listen)
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OFFSET
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1,2
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EXAMPLE
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423 is in the sequence because 423 in base 5 is 3413 and in base 7 it is 1143.
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MAPLE
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a:=proc(n) if convert(convert(n, base, 5), set)=convert(convert(n, base, 7), set) then n else fi end: seq(a(n), n=1..3000); - Emeric Deutsch (deutsch(AT)duke.poly.edu), Apr 30 2006
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CROSSREFS
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Sequence in context: A111191 A115891 A037394 this_sequence A154715 A077407 A123702
Adjacent sequences: A037427 A037428 A037429 this_sequence A037431 A037432 A037433
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KEYWORD
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nonn,base
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AUTHOR
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Clark Kimberling (ck6(AT)evansville.edu)
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EXTENSIONS
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More terms from Don Reble (djr(AT)nk.ca), Apr 28 2006
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