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0, 6, 6, 6, 12, 30, 6, 42, 24, 18, 30, 66, 12, 78, 42, 30, 48, 102, 18, 114, 60, 42, 66, 138, 24, 150, 78, 54, 84, 174, 30, 186, 96, 66, 102, 210, 36, 222, 114, 78, 120, 246, 42, 258, 132, 90, 138, 282, 48, 294, 150, 102, 156, 318, 54, 330, 168, 114, 174, 354
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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FORMULA
| a(n) = n*6/GCD(n, 6) .
a(n)= +2*a(n-6) -a(n-12) = 6*A060789(n) = 6*n/A089128(n). - R. J. Mathar, Apr 18 2011
G.f. 6*x*(1+x+x^2+2*x^3+5*x^4+x^5+5*x^6+2*x^7+x^8+x^9+x^10) / ( (x-1)^2*(1+x)^2*(1+x+x^2)^2*(x^2-x+1)^2 ). - R. J. Mathar, Apr 18 2011
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PROG
| (Other) sage: [lcm(n, 6)for n in xrange(0, 60)] # [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Jun 07 2009]
(MAGMA) [Lcm(n, 6): n in [0..100]]; // Vincenzo Librandi, Apr 18 2011
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CROSSREFS
| Cf. A109042.
Sequence in context: A035019 A052380 A180604 * A153171 A069525 A054435
Adjacent sequences: A109044 A109045 A109046 * A109048 A109049 A109050
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KEYWORD
| nonn,easy
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AUTHOR
| Mitch Harris (Harris.Mitchell(AT)mgh.harvard.edu), Jun 18 2005
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