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A145851 Primes of the form k followed by k 9's. 2
19, 49999, 599999, 1799999999999999999, 2099999999999999999999, 289999999999999999999999999999 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

Corresponding k, which cannot be multiples of 3, are in A174352. The next term has 176 digits, too large to include here. [From Rick L. Shepherd (rshepherd2(AT)hotmail.com), Mar 22 2010]

CROSSREFS

A141311, A145852

Cf. A174352. [From Rick L. Shepherd (rshepherd2(AT)hotmail.com), Mar 22 2010]

Sequence in context: A172762 A203703 A068734 * A034207 A098970 A172751

Adjacent sequences:  A145848 A145849 A145850 * A145852 A145853 A145854

KEYWORD

nonn,base

AUTHOR

Lekraj Beedassy (blekraj(AT)yahoo.com), Oct 21 2008

EXTENSIONS

a(2) was 4999; corrected by Rick L. Shepherd (rshepherd2(AT)hotmail.com), Mar 22 2010

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Last modified February 17 12:34 EST 2012. Contains 206018 sequences.