OFFSET
1,1
COMMENTS
For a guide to related sequences, see A204892.
EXAMPLE
a(1)=s(2)-s(1)=(3^2-2^2)-(3^1-2^1)=4
a(2)=s(3)-s(1)=19-1=18
a(3)=s(3)-s(2)=19-5=14
a(4)=s(4)-s(1)=65-1=64
MATHEMATICA
(See the program at A205000.)
CROSSREFS
KEYWORD
nonn
AUTHOR
Clark Kimberling, Jan 22 2012
STATUS
approved