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10, 1, 2, 10, 2, 1, 20, 1, 2, 10, 2, 1, 20, 1, 2, 10, 2, 1, 20, 1, 2, 10, 2, 1, 20, 1, 2, 10, 2, 1, 20, 1, 2, 10, 2, 1, 20, 1, 2, 10, 2, 1, 20, 1, 2, 10, 2, 1, 20, 1, 2, 10, 2, 1, 20, 1, 2, 10, 2, 1, 20, 1, 2, 10, 2, 1, 20, 1, 2, 10
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OFFSET
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0,1
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LINKS
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FORMULA
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G.f.: (10 + x + 2*x^2 + 10*x^3 + 2*x^4 + x^5 + 10*x^6)/(1 - x^6). - Bruno Berselli, Jun 13 2013
Multiplicative with a(2^e) = 2, a(3^e) = 10, and a(p^e) = 1 for p >= 5.
Dirichlet g.f.: zeta(s) * (1 + 1/2^s) * (1 + 1/3^(s-2)). (End)
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MATHEMATICA
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CROSSREFS
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KEYWORD
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nonn,cofr,easy,mult
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AUTHOR
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STATUS
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approved
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