OFFSET
0,2
LINKS
Minfeng Wang, C++ program
CROSSREFS
KEYWORD
nonn,hard,more
AUTHOR
Giovanni Resta, May 08 2006
EXTENSIONS
a(0)=1 prepended by Alois P. Heinz, Mar 16 2019
a(8) from Minfeng Wang, Jun 11 2024
a(9) from Minfeng Wang, Jun 12 2024
a(10) from Hugo Pfoertner, Jun 25 2024
STATUS
approved