OFFSET
1,2
COMMENTS
Next term has 96 digits. In fact the sequence has only 14 terms, a(13)=250^40 and a(14)=370^48.
EXAMPLE
24794911296=(2+4+7+9+4+9+1+1+2+9+6)^phi(phi(2+4+7+9+4+9+1+1+2+9+6)) so 24794911296 is in the sequence.
CROSSREFS
KEYWORD
base,fini,nonn
AUTHOR
Farideh Firoozbakht, Nov 24 2007
STATUS
approved