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
KEYWORD
nonn,more
AUTHOR
Yasutoshi Kohmoto, Jan 19 2009
STATUS
approved