Search: id:A153078
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%I A153078
%S A153078 0,1,1,2,2,5,2,4,5,3,7,5,10,2,8,4,5,6,11,32,42
%N A153078 Number of solutions for m such that sigma(m) = A002110(n) where A002110(n) 
               is the product of the first n primes.
%F A153078 a(n) = A054973(A002110(n)). - Chandler
%e A153078 a(10) = 3 because 2388809736, 3450503048 and 3696967556 are the only 
               numbers with a sigma value = A002110(10). A002110(10) = 6469693230 
               = 2*3*5*7*11*13*17*19*23*29.
%Y A153078 Cf. A000203, A002110, A153076, A153077.
%Y A153078 Sequence in context: A061034 A111861 A004543 this_sequence A076200 A039931 
               A128645
%Y A153078 Adjacent sequences: A153075 A153076 A153077 this_sequence A153079 A153080 
               A153081
%K A153078 nonn,more
%O A153078 1,4
%A A153078 Donovan Johnson (donovan.johnson(AT)yahoo.com), Dec 19 2008
%E A153078 a(12)-a(21) from Ray Chandler (rayjchandler(AT)sbcglobal.net), Dec 28 
               2008

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