OFFSET
1,1
COMMENTS
a(9) > 2^31 - 1 (by exhaustive search). - Jon Maiga, Jan 17 2019
a(9) >= 2^59 - 1. - Robert Cunningham, May 26 2026
CROSSREFS
KEYWORD
nonn,more,changed
AUTHOR
Naohiro Nomoto, Oct 09 2000
EXTENSIONS
More terms from Mark Weston (mweston(AT)uvic.ca), Oct 10 2001
STATUS
approved
