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A064703 Smallest lucky number that is the product of n lucky numbers. 0
3, 9, 63, 189, 729, 729, 2187, 35721, 45927, 413343, 413343, 2657205, 3720087, 4782969, 33480783, 100442349, 387420489, 387420489, 1162261467 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

EXAMPLE

a(5)=729 because 3^4*9=729, a(6)=729 because 3^6=729.

CROSSREFS

Cf. A000959, A057616.

Sequence in context: A202210 A018513 A143761 * A085435 A121696 A108557

Adjacent sequences:  A064700 A064701 A064702 * A064704 A064705 A064706

KEYWORD

nonn

AUTHOR

Sascha Kurz (sascha.kurz(AT)uni-bayreuth.de), Oct 13 2001

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Last modified February 14 16:19 EST 2012. Contains 205635 sequences.