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A109051 LCM(n,10). +0
2
0, 10, 10, 30, 20, 10, 30, 70, 40, 90, 10, 110, 60, 130, 70, 30, 80, 170, 90, 190, 20, 210, 110, 230, 120, 50, 130, 270, 140, 290, 30, 310, 160, 330, 170, 70, 180, 370, 190, 390, 40, 410, 210, 430, 220, 90, 230, 470, 240, 490, 50, 510, 260, 530, 270, 110, 280 (list; graph; listen)
OFFSET

0,2

FORMULA

a(n) = n*10/GCD(n, 10).

PROGRAM

(Other) sage: [lcm(n, 10)for n in xrange(0, 57)] # [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Jun 07 2009]

CROSSREFS

Cf. A109042.

Sequence in context: A040091 A022093 A076817 this_sequence A003875 A111220 A106789

Adjacent sequences: A109048 A109049 A109050 this_sequence A109052 A109053 A109054

KEYWORD

nonn,easy

AUTHOR

Mitch Harris (Harris.Mitchell(AT)mgh.harvard.edu), Jun 18 2005

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.


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