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A117689 Cubes for which the product of the digits is a square. 0
0, 1, 343, 1000, 1331, 4096, 8000, 10648, 19683, 27000, 39304, 50653, 64000, 74088, 79507, 103823, 110592, 125000, 140608, 148877, 205379, 216000, 238328, 250047, 300763, 328509, 343000, 389017, 405224, 493039, 512000, 551368, 592704, 636056 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..33.

EXAMPLE

19683 is in the sequence because it is a cube and the product of its digits 1*9*6*8*3=1296 is a square.

CROSSREFS

Cf. A000290, A000578.

Sequence in context: A043395 A269346 A202852 * A178374 A179147 A047739

Adjacent sequences:  A117686 A117687 A117688 * A117690 A117691 A117692

KEYWORD

nonn,base

AUTHOR

Luc Stevens (lms022(AT)yahoo.com), Apr 12 2006

STATUS

approved

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Last modified August 21 23:28 EDT 2019. Contains 326169 sequences. (Running on oeis4.)