A144648 - OEIS

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.

10147737600, 166240237363200, 310334052188160, 9500311941120000

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OFFSET

1,1

COMMENTS

If m=n then only one example m=n=1 exists.

LINKS

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

KEYWORD

nonn,more

AUTHOR

STATUS

approved