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A073073 Numbers n such that the minimal value of abs(2^n-3^x) x>0 is prime (i.e. n such that A064024(n) is prime). 0
4, 5, 6, 7, 8, 11, 14, 21, 25, 89, 97, 110, 116, 121, 177, 235, 294, 784, 1039, 1454, 1629, 3460 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

MATHEMATICA

Do[k = 0; While[Abs[2^n - 3^k] > Abs[2^n - 3^(k + 1)], k++ ]; If[PrimeQ[Abs[2^n - 3^k]], Print[n]], {n, 1, 4000}] (Steinerberger)

CROSSREFS

Sequence in context: A039040 A129740 A161428 * A047567 A050038 A059709

Adjacent sequences:  A073070 A073071 A073072 * A073074 A073075 A073076

KEYWORD

nonn

AUTHOR

Benoit Cloitre (benoit7848c(AT)orange.fr), Aug 17 2002

EXTENSIONS

a(19)-a(22) from Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Jan 22 2006

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Last modified February 16 23:45 EST 2012. Contains 205978 sequences.