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A023375
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a(n+1) = a(n) converted to base 7 from base 4 (written in base 10).
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1
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4, 7, 10, 16, 49, 148, 742, 5938, 141808, 11802091, 4842570841, 34593916101529, 5841428292099230860, 180784187945837355598287982, 4732398970947497341225017545892387325, 1674333602909405576416684722405784994054948834029942
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refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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NestList[FromDigits[IntegerDigits[#, 4], 7]&, 4, 20] (* Harvey P. Dale, Jul 11 2014 *)
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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