A359998 - OEIS

%I #9 Jan 24 2023 17:42:51

%S 1,1,1,1,2,2,28,216,65200,167084480

%N Number of longest directed cycles in the 2-Fibonacci digraph of order n.

%C See Dalfó and Fiol (2019) or A360000 for the definition of the 2-Fibonacci digraph.

%C The longest cycles appear to have length A080023(n).

%H C. Dalfó and M. A. Fiol, <a href="https://arxiv.org/abs/1909.06766">On d-Fibonacci digraphs</a>, arXiv:1909.06766 [math.CO], 2019.

%Y Cf. A016031, A080023, A359997, A360000.

%K nonn,more

%O 1,5

%A _Pontus von Brömssen_, Jan 21 2023

%E a(10) from _Bert Dobbelaere_, Jan 24 2023