OFFSET
1,3
COMMENTS
Probably there are no other terms. There are no other terms below 10^100.
EXAMPLE
Under the powerback map of A133048, 25 -> 5^2 = 25, 107495424 -> 4^2*4^5*9^4*7^0*1 = 107495424.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
J. H. Conway and N. J. A. Sloane, Dec 31 2007
STATUS
approved