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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.
1
10147737600, 166240237363200, 310334052188160, 9500311941120000
OFFSET
1,1
COMMENTS
If m=n then only one example m=n=1 exists.
EXAMPLE
Factorization :
2^12*5^2*7*13*3^2*11^2
2^13*5^2*7*13*8191*3^2*11^2
2^14*5*7^2*13*43*127*3^2*11^2
2^15*5^4*7*13*31*151*3^2*11^2
CROSSREFS
Sequence in context: A173051 A159569 A159292 * A098143 A276590 A259152
KEYWORD
nonn,more
AUTHOR
Yasutoshi Kohmoto, Jan 19 2009
STATUS
approved