OFFSET
0,4
COMMENTS
This is the same as the floor-sqrt transform of phi^n, where phi = (1+sqrt(5))/2.
LINKS
T. D. Noe, Table of n, a(n) for n = 0..1000
FORMULA
a(n) = floor(sqrt(Lucas(n))).
MATHEMATICA
Table[Floor[Sqrt[LucasL[n]]], {n, 0, 100}]
PROG
(Maxima) makelist(floor(sqrt(fib(n-1)+fib(n+1))), n, 0, 24);
(Magma) [Floor(Sqrt(Lucas(n))): n in [0..50]]; // Vincenzo Librandi, Sep 30 2017
(PARI) a(n) = sqrtint(fibonacci(n-1)+fibonacci(n+1)); \\ Michel Marcus, Sep 30 2017
CROSSREFS
KEYWORD
nonn
AUTHOR
Emanuele Munarini, Jul 07 2011
STATUS
approved