OFFSET
1,1
REFERENCES
Hugh C. Williams, Edouard Lucas and Primality Testing, John Wiley and Sons, 1998, p. 75.
LINKS
FORMULA
a(n) = 8*a(n-1) - 8*a(n-2) + a(n-3).
G.f.: x*(2*x^2-12*x-5)/((x-1)*(x^2-7*x+1)). - Colin Barker, Jun 22 2012
a(n) = Fibonacci(2*n+3)*Lucas(2*n-1). - Ehren Metcalfe, Apr 21 2019
MAPLE
with(combinat): for n from 1 to 40 do printf(`%d, `, fibonacci(4*n+2)-3) od: # James A. Sellers, Mar 05 2003
MATHEMATICA
Array[Fibonacci[4 # + 2] - 3 &, 19] (* Michael De Vlieger, Apr 21 2019 *)
PROG
(Magma) [Fibonacci(4*n+2)-3: n in [1..50]]; // Vincenzo Librandi, Apr 20 2011
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
R. K. Guy, Mar 04 2003
EXTENSIONS
More terms from James A. Sellers, Mar 05 2003
STATUS
approved