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A105462 The 3^n-th irregular prime. 2
37, 67, 233, 467, 1307, 4637, 15601, 54437, 184279, 616391, 2009011, 6568217 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

MATHEMATICA

ip={ the list of irregular primes to 12 million }; Table[ ip[[3^n]], {n, 0, 11}]

CROSSREFS

Cf. A038833, A105458, A105467.

Sequence in context: A054805 A141163 A063461 * A119381 A138396 A155087

Adjacent sequences:  A105459 A105460 A105461 * A105463 A105464 A105465

KEYWORD

hard,nonn

AUTHOR

Robert G. Wilson v (rgwv(AT)rgwv.com), Apr 07 2005

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Last modified February 14 05:53 EST 2012. Contains 205570 sequences.