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A023376
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a(n+1) = a(n) converted to base 8 from base 4 (written in base 10).
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1
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4, 8, 16, 64, 512, 8192, 524288, 268435456, 4398046511104, 9223372036854775808, 19807040628566084398385987584, 2787593149816327892691964784081045188247552, 3291009114642412084309938365114701009965471731267159726697218048
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internal format)
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OFFSET
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1,1
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LINKS
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FORMULA
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MATHEMATICA
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NestList[FromDigits[IntegerDigits[#, 4], 8]&, 4, 15] (* Harvey P. Dale, Sep 24 2012 *)
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PROG
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(Python)
from itertools import islice
def A023376_gen(): # generator of terms
a = 2
while True:
yield 1<<a
a += a>>1
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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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