OFFSET
0,1
FORMULA
a(n) = a(n-1) + a(n-2) + a(n-1) * a(n-2) for n>1, a(0)=3, a(1)=1.
MATHEMATICA
Table[2^LucasL[n] - 1, {n, 0, 15}] (* Bruno Berselli, Sep 03 2013 *)
PROG
(Magma) [2^Lucas(n)-1: n in [0..15]]; // Bruno Berselli, Sep 03 2013
(PARI) a(n)=2^(fibonacci(n-1)+fibonacci(n+1))-1 \\ Charles R Greathouse IV, Sep 03 2013
CROSSREFS
KEYWORD
nonn
AUTHOR
Yeshwant Shivrai Valaulikar, Sep 03 2013
EXTENSIONS
More terms from Bruno Berselli, Sep 03 2013
STATUS
approved