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%I #8 Nov 07 2018 20:13:17
%S 0,0,0,0,0,0,1,2,24,3136,29249425,2544489349890656,
%T 10469303814509319059584520878072,
%U 52390584919058211443518140875804297526718993867687450278537778
%N Tribonacci(pentanacci(n)).
%H Alois P. Heinz, <a href="/A111428/b111428.txt">Table of n, a(n) for n = 0..17</a>
%F a(n) = A000073(A001591(n)).
%p a:= n-> (<<0|1|0>, <0|0|1>, <1|1|1>>^((<<0|1|0|0|0>,
%p <0|0|1|0|0>, <0|0|0|1|0>, <0|0|0|0|1>, <1|1|1|1|1>>^n)[1, 5]))[1, 3]:
%p seq(a(n), n=0..12); # _Alois P. Heinz_, Nov 07 2018
%Y Cf. A000045, A000073, A001591, A007570.
%K easy,nonn
%O 0,8
%A _Jonathan Vos Post_, Nov 13 2005
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