%I #6 Jun 10 2018 13:51:39
%S 1,21,10610209857723
%N a(n) = Fibonacci(8^n).
%H Alois P. Heinz, <a href="/A250487/b250487.txt">Table of n, a(n) for n = 0..4</a>
%F a(n) = A000045(8^n).
%p a:= n-> (<<0|1>, <1|1>>^(8^n))[1, 2]:
%p seq(a(n), n=0..4);
%Y Row n=8 of A250486.
%Y Cf. A000045.
%K nonn
%O 0,2
%A _Alois P. Heinz_, Nov 24 2014