OFFSET
1,2
FORMULA
MATHEMATICA
Table[Fibonacci[n(n+1)]/Fibonacci[n], {n, 20}] (* Harvey P. Dale, Mar 30 2012 *)
PROG
(PARI) {a(n)=fibonacci(n*(n+1))/fibonacci(n)}
(PARI) {Lucas(n)=fibonacci(n-1)+fibonacci(n+1)}
{a(n)=polcoeff(1/(1-Lucas(n)*x+(-1)^n*x^2+x*O(x^n)), n)}
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Paul D. Hanna, Jan 28 2012
STATUS
approved