OFFSET
0,1
COMMENTS
a(6) = 3393011755..4322744978 has 1208 decimal digits and a(7) = 4437405101..8830136999 has 240305 decimal digits.
LINKS
Alois P. Heinz, Table of n, a(n) for n = 0..5
MAPLE
L:= n-> (<<0|1>, <1|1>>^n. <<2, 1>>)[1$2]:
a:= n-> L(L(L(n))):
seq(a(n), n=0..5);
MATHEMATICA
PROG
(Python)
from sympy import lucas as L
def a(n): return L(L(L(n)))
print([a(n) for n in range(6)]) # Michael S. Branicky, Apr 01 2021
CROSSREFS
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Nov 09 2016
STATUS
approved