OFFSET
1,2
LINKS
Matthias Simon, Program to compute a(1)...a(10)
CROSSREFS
KEYWORD
nonn,hard,more
AUTHOR
Søren Eilers, Oct 29 2006
EXTENSIONS
a(9) from Matthias Simon, Aug 29 2020
a(10) from Matthias Simon, Nov 15 2020
STATUS
approved