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 A023376 a(n+1) = a(n) converted to base 8 from base 4 (written in base 10). 1
 4, 8, 16, 64, 512, 8192, 524288, 268435456, 4398046511104, 9223372036854775808, 19807040628566084398385987584, 2787593149816327892691964784081045188247552, 3291009114642412084309938365114701009965471731267159726697218048 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS John Cerkan, Table of n, a(n) for n = 1..19 FORMULA a(n) = 2^A061418(n). - John Cerkan, Nov 04 2016 MATHEMATICA NestList[FromDigits[IntegerDigits[#, 4], 8]&, 4, 15] (* Harvey P. Dale, Sep 24 2012 *) PROG (Python) from itertools import islice def A023376_gen(): # generator of terms a = 2 while True: yield 1<>1 A023376_list = list(islice(A023376_gen(), 20)) # Chai Wah Wu, Sep 21 2022 CROSSREFS Cf. A061418. Sequence in context: A102358 A038238 A230112 * A242966 A337235 A038110 Adjacent sequences: A023373 A023374 A023375 * A023377 A023378 A023379 KEYWORD nonn,base AUTHOR EXTENSIONS One more term (a(13)) from Harvey P. Dale, Sep 24 2012 STATUS approved

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Last modified April 1 23:32 EDT 2023. Contains 361718 sequences. (Running on oeis4.)