OFFSET
1,2
COMMENTS
It is similar to A163947, but the difference is expressed by the nontrivial sequence: 0, 3, 9, 54, 320, 1590, 6552... excluding solutions by powers of the function itself.
FORMULA
a(n) = n^n - A163950(n).
CROSSREFS
KEYWORD
more,nonn
AUTHOR
Carlos Alves, Aug 06 2009
STATUS
approved