**a(n) is the smallest n-perfect number of the form 2^(n+1)*l, where l is an odd number with exponents<=n in its prime power factorization, and a(n)=0 if such n-perfect number does not exist**

*60, 6552, 222768, 288288, 87360, 49585536, 25486965504, 203558400, 683289600*

*1 seqfan posts*

Index of A-numbers in seqfan: by ascending order by month by frequency by keyword

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