OFFSET
1,1
EXAMPLE
a(3)=17 because n=3*5*17=255 and 2^256 = 1 (mod 255)
CROSSREFS
KEYWORD
nonn
AUTHOR
Joe K. Crump (joecr(AT)carolina.rr.com), Jan 09 2001
EXTENSIONS
Offset corrected by Charles R Greathouse IV, Mar 02 2013
STATUS
approved