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A145644 Cubefree part of 10^n. 0
1, 10, 100, 1, 10, 100, 1, 10, 100, 1, 10, 100, 1, 10, 100, 1, 10, 100, 1, 10, 100, 1, 10, 100, 1, 10, 100, 1, 10, 100, 1, 10, 100, 1, 10, 100, 1, 10, 100, 1, 10, 100, 1, 10, 100, 1, 10, 100, 1, 10, 100, 1, 10, 100, 1, 10, 100, 1, 10, 100, 1, 10, 100, 1, 10, 100, 1, 10, 100 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

MATHEMATICA

CubefreePart[n_Integer?Positive] := Times @@ Power @@@ ({#[[1]], Mod[ #[[2]], 3]} & /@ FactorInteger[n]); Table[CubefreePart[10^n], {n, 1, 40}]

CROSSREFS

A004709, A050985, A069705, A145642, A145643

Sequence in context: A138365 A190823 A187019 * A119589 A107411 A019513

Adjacent sequences:  A145641 A145642 A145643 * A145645 A145646 A145647

KEYWORD

nonn

AUTHOR

Artur Jasinski (grafix(AT)csl.pl), Oct 15 2008

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Last modified February 17 00:09 EST 2012. Contains 205978 sequences.