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A104729 Smallest semiprime containing exactly n 6's. 0
6, 166, 4666, 46666, 616666, 5666666, 62666666, 166666666, 6466666666, 46666666666, 666626666666, 6666566666666, 66266666666666, 646666666666666, 2666666666666666, 46666666666666666, 666566666666666666 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

EXAMPLE

a(2)=166 because 166 is the smallest semiprime containing exactly two 6's.

CROSSREFS

Sequence in context: A178435 A183254 A143534 * A106661 A181013 A003720

Adjacent sequences:  A104726 A104727 A104728 * A104730 A104731 A104732

KEYWORD

base,nonn

AUTHOR

Shyam Sunder Gupta (guptass(AT)rediffmail.com), Apr 24 2005

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Last modified February 14 06:20 EST 2012. Contains 205570 sequences.