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)=3!-1!=5
a(3)=s(3)-s(2)=3!-2!=4
a(4)=s(4)-s(1)=4!-1!=23
MATHEMATICA
(See the program at A204932.)
CROSSREFS
KEYWORD
nonn
AUTHOR
Clark Kimberling, Jan 21 2012
STATUS
approved