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A066209 A053041(n)-10^(n-1). 2
0, 0, 2, 0, 0, 2, 6, 0, 8, 0, 10, 8, 12, 4, 5, 0, 16, 8, 18, 0, 5, 12, 22, 8, 0, 16, 8, 8, 28, 20, 30, 0, 32, 24, 10, 8, 36, 28, 17, 0, 40, 2, 42, 12, 35, 36, 46, 32, 41, 0, 2, 40, 52, 8, 10, 32, 14, 48, 58, 20, 60, 52, 26, 0, 10, 56, 66, 20, 38, 50, 70, 8, 72, 64, 50, 64, 10, 74, 78 (list; graph; refs; listen; history; internal format)
OFFSET

1,3

COMMENTS

a(n) = 0 iff n is of form 2^i*5^j (cf. A003592).

CROSSREFS

Sequence in context: A127862 A024690 A200728 * A116597 A202496 A165664

Adjacent sequences:  A066206 A066207 A066208 * A066210 A066211 A066212

KEYWORD

easy,nonn

AUTHOR

Vladeta Jovovic (vladeta(AT)eunet.rs), Dec 17 2001

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Last modified February 16 06:27 EST 2012. Contains 205860 sequences.