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A090862 Smallest b > 10 such that the decimal representation of the n-th prime is not a prime in base b representation. +0
4
11, 11, 11, 11, 11, 12, 11, 11, 11, 12, 11, 11, 11, 14, 13, 11, 11, 11, 11, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 11, 11, 12, 11, 11, 11, 11, 11, 11, 12, 12, 11, 11, 12, 11, 11, 11, 11, 11, 11, 12, 11, 11, 11, 12, 11, 11 (list; graph; listen)
OFFSET

5,1

COMMENT

a(A091922(n))=n and a(m)<>n for m<A091922(n).

EXAMPLE

n=10: A000040(10)=29 in base 11 is 2*11^1+9*11^0=31 isprime,

29 in base 12 is 2*12^1+9*12^0=33=3*11, therefore a(10)=12.

CROSSREFS

Cf. A091923, A091924.

Sequence in context: A083971 A052192 A110733 this_sequence A100756 A079596 A134036

Adjacent sequences: A090859 A090860 A090861 this_sequence A090863 A090864 A090865

KEYWORD

nonn,base

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Feb 12 2004

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.


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