%I #2 May 20 2014 14:52:31
%S 1,3,9,531441
%N a(n-1)+k=a(n) => a(n)^k=a(n+1).
%C For +k and *k see A057268.
%Y Cf. A057268.
%K easy,nonn
%O 0,2
%A _Jonas Wallgren_, Aug 22 2000
