OFFSET
1,1
COMMENTS
No additional terms < 10^7. See A173348 for more information.
a(7) > 10^9. - Jon E. Schoenfield, May 07 2021
MATHEMATICA
Solutions[12, 11, 10^7] (* see A173348 *)
CROSSREFS
KEYWORD
nonn,hard,more
AUTHOR
T. D. Noe, Feb 22 2010
EXTENSIONS
a(6) from Jon E. Schoenfield, May 07 2021
STATUS
approved