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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

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

LINKS

Table of n, a(n) for n=0..3.

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

Cf. A144651.

Sequence in context: A173051 A159569 A159292 * A098143 A276590 A259152

Adjacent sequences:  A144645 A144646 A144647 * A144649 A144650 A144651

KEYWORD

nonn

AUTHOR

Yasutoshi Kohmoto, Jan 19 2009

STATUS

approved

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Last modified November 22 05:36 EST 2017. Contains 295076 sequences.