OFFSET
1,1
EXAMPLE
The fourth triple is 125, 475, 575, hence a(4) = 575.
PROG
(PARI) {m=4000; for(n=3, m, for(a=1, (n-1)\2, b=n-a; c=a*b%(a+b); if(b<c, if((b*c)%(b+c)==a, if((a*c)%(a+c)==b, print1(c, ", ")))))); }
CROSSREFS
KEYWORD
nonn
AUTHOR
Klaus Brockhaus, Mar 06 2004
STATUS
approved