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A106426 Smallest number beginning with 6 and having exactly n prime divisors counted with multiplicity. 0
61, 6, 63, 60, 612, 64, 648, 640, 6048, 6400, 6912, 6144, 62208, 61440, 602112, 65536, 663552, 655360, 6029312, 6553600, 60162048, 6291456, 63700992, 62914560, 616562688, 67108864, 679477248, 603979776, 6115295232, 6039797760 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

EXAMPLE

a(4) = 60 = 2^2*3*5.

CROSSREFS

Cf. A077326-A077334, A106411-A106419, A106421-A106429.

Sequence in context: A198189 A102600 A077331 * A106416 A012860 A002108

Adjacent sequences:  A106423 A106424 A106425 * A106427 A106428 A106429

KEYWORD

base,nonn

AUTHOR

Ray Chandler (rayjchandler(AT)sbcglobal.net), May 02 2005

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Last modified February 14 23:53 EST 2012. Contains 205689 sequences.