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A118329 Catalan-primes: primes formed from the concatenation of initial decimal digits of Catalan's constant. 1

%I

%S 9159655941772190150546035149323841107741493742816721

%N Catalan-primes: primes formed from the concatenation of initial decimal digits of Catalan's constant.

%C Next term has 276 digits and so is too large to include.

%H Tanya Khovanova, <a href="http://www.tanyakhovanova.com/RecursiveSequences/NonRecursions.html">Non Recursions</a>

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/Catalan-Prime.html">Catalan-Prime</a>

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/IntegerSequencePrimes.html">Integer Sequence Primes</a>

%e C = 0.915965594177... and the 52-digit number a(1) = 9159655941772190150546035149323841107741493742816721 is prime.

%Y Cf. A006752, A118328.

%K nonn,bref,base

%O 1,1

%A _Eric W. Weisstein_, Apr 25 2006

%E Edited by _Charles R Greathouse IV_, Apr 27 2010

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Last modified April 19 05:00 EDT 2021. Contains 343105 sequences. (Running on oeis4.)