Search: id:A144648
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%I A144648
%S A144648 10147737600,166240237363200,310334052188160,9500311941120000
%N A144648 Consider pairs of numbers m,n such that UnitaryPhi(m)=UnitaryPhi(n)= 
               (3*m^(1/2)-2*n^(1/2))^2, m<n. Sequence gives n.
%C A144648 If m=n then only one example m=n=1 exists.
%e A144648 Factorization :
%e A144648 2^12*5^2*7*13*3^2*11^2
%e A144648 2^13*5^2*7*13*8191*3^2*11^2
%e A144648 2^14*5*7^2*13*43*127*3^2*11^2
%e A144648 2^15*5^4*7*13*31*151*3^2*11^2
%Y A144648 Cf. A144651.
%Y A144648 Sequence in context: A050288 A159569 A159292 this_sequence A135047 A017541 
               A112453
%Y A144648 Adjacent sequences: A144645 A144646 A144647 this_sequence A144649 A144650 
               A144651
%K A144648 nonn
%O A144648 0,1
%A A144648 Yasutoshi Kohmoto zbi74583.boat at orange.zero.jp, Jan 19 2009

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