OFFSET
0,1
COMMENTS
Perrin numbers are numbers in A001608.
LINKS
Index entries for linear recurrences with constant coefficients, signature (1,1,1,-1,1,-1).
FORMULA
a(n) = (A001608(n))^2.
G.f.: -x*(-4-5*x+9*x^2-8*x^3+9*x^4)/ ((x^3-x-1)*(x^3-x^2+2*x-1)). - R. J. Mathar, Aug 06 2011
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Kausthub Gudipati, Aug 05 2011
STATUS
approved