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Search: id:A110143
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| 1, 1, 4, 11, 43, 161, 901, 5579, 43206, 378360, 3742738, 40853520, 488029621, 6323154547, 88308425755, 1322120265238, 21122364398761, 358647945023885, 6449299885654827, 122436442904193940, 2447046870232798369
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OFFSET
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0,3
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COMMENT
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Row n of triangle A110141 lists the denominators of unit fraction coefficients of the products of {c_k}, in ascending order by indices of {c_k}, in the coefficient of x^n in exp(Sum_{k>=1} c_k/k*x^k). There are A000041(n) terms in row n of triangle A110141.
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FORMULA
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G.f.: B(x)*B(2*x^2)*B(3*x^3)*..., where B(x) is g.f. of A000142. - Vladeta Jovovic (vladeta(AT)Eunet.yu), Feb 18 2007
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CROSSREFS
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Cf. A110141, A000041.
Cf. A096161.
Sequence in context: A030981 A000296 A032265 this_sequence A074410 A053882 A027042
Adjacent sequences: A110140 A110141 A110142 this_sequence A110144 A110145 A110146
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KEYWORD
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nonn
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AUTHOR
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Paul D. Hanna (pauldhanna(AT)juno.com), Jul 14 2005
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