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a(n) = A289191(prime(n)).
2

%I #13 Jul 03 2017 22:34:40

%S 2,4,112,11292,740754220,361711410384,222595582448849152,

%T 258327454310582805036,661821993709898403923269564,

%U 10266982973657640119698928948136690256,34586475747666402744018445215769168804860,2847089959666118831608487671650698855934142888811472

%N a(n) = A289191(prime(n)).

%C The case n=2 is a degenerate polygon (two sides connecting two vertices). The two possibilities are when the edges cross and do not cross. Polygons start at n=3 with a triangle.

%H Marko Riedel, <a href="https://math.stackexchange.com/questions/2097450/">Hexagonal tiles.</a>

%H Marko Riedel, <a href="/A289343/a289343.maple.txt">Maple code for number of tiles using Burnside lemma.</a>

%F a(n) = A289191(prime(n))

%Y Cf. A289191.

%K nonn

%O 1,1

%A _Marko Riedel_, Jul 02 2017