OFFSET
1,6
LINKS
Lucas A. Brown, Python program.
CROSSREFS
KEYWORD
more,nonn,hard,changed
AUTHOR
Enoch Haga, Mar 02 2004
EXTENSIONS
a(9) and a(10) from Sean A. Irvine, Oct 06 2011
a(11) from Chai Wah Wu, Mar 18 2018
a(12) and a(13) from Lucas A. Brown, Oct 15 2024
STATUS
approved