OFFSET
1,2
COMMENTS
For a guide to related sequences, see A204892.
EXAMPLE
a(1)=s(2)-s(1)=2-1=1
a(2)=s(3)-s(1)=5-1=4
a(3)=s(3)-s(2)=5-2=3
a(4)=s(4)-s(1)=13-1=12
a(5)=s(4)-s(2)=13-2=11
MATHEMATICA
(See the program at A205442.)
CROSSREFS
KEYWORD
nonn
AUTHOR
Clark Kimberling, Jan 27 2012
STATUS
approved