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A263959
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Number of decimal digits in A069151(n).
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0
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OFFSET
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1,2
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COMMENTS
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Subset of A227530 (Copeland-Erdős constant primes) corresponding to concatenation of a full (non-truncated) final prime.
a(9) > 459970. - Eric W. Weisstein (according to Mark Rodenkirch as of Nov 21 2015)
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LINKS
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Table of n, a(n) for n=1..8.
Eric Weisstein's World of Mathematics, Consecutive Number Sequences
Eric Weisstein's World of Mathematics, Integer Sequence Primes
Eric Weisstein's World of Mathematics, Smarandache-Wellin Prime
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MATHEMATICA
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Cases[FromDigits /@ Rest[FoldList[Join, {}, IntegerDigits[Prime[Range[10^3]]]]], p_?PrimeQ :> IntegerLength[p]]
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PROG
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(PARI) p=""; for(n=1, 1e4, p=concat(p, prime(n)); if(ispseudoprime( eval(p)), print1(#Str(p)", "))) \\ Altug Alkan, Oct 30 2015
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CROSSREFS
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Cf. A019518, A046035, A069151.
Cf. A227529 (Copeland-Erdős constant primes).
Cf. A227530 (decimal digits in n-th Copeland-Erdős constant prime).
Sequence in context: A012618 A012557 A012562 * A216024 A247220 A012753
Adjacent sequences: A263956 A263957 A263958 * A263960 A263961 A263962
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KEYWORD
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nonn,base,more
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AUTHOR
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Eric W. Weisstein, Oct 30 2015
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STATUS
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approved
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