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A104387 Larger of two successive primes the average of which is a repdigit. +0
4
5, 7, 11, 101, 113, 4447, 111111113, 555555555559, 10000000000000061, 111111111111111131, 444444444444444469, 555555555555555555619, 777777777777777777777787, 333333333333333333333333333333373 (list; graph; listen)
OFFSET

1,1

COMMENT

Lesser primes A104388, repdigits A104389. What is the next term?

FORMULA

a(n)=p[A104386(n)+1]

CROSSREFS

Cf. A054268, A104386, A104388, A104389.

Sequence in context: A091509 A027728 A086140 this_sequence A133761 A057659 A098040

Adjacent sequences: A104384 A104385 A104386 this_sequence A104388 A104389 A104390

KEYWORD

nonn,base

AUTHOR

Zak Seidov (zakseidov(AT)yahoo.com), Mar 04 2005

EXTENSIONS

More terms from Giovanni Resta (g.resta(AT)iit.cnr.it), Apr 05 2006

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Last modified November 25 08:46 EST 2009. Contains 167481 sequences.


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