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Size of the largest polyiamond that can be enclosed in n cells on a triangular lattice.
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%I #16 Jul 07 2024 13:14:20

%S 0,0,0,0,0,0,1,1,2,2,3,3,6,6,6,7,7,10

%N Size of the largest polyiamond that can be enclosed in n cells on a triangular lattice.

%e A single triangular face takes 12 triangles to completely enclose so a(12) = 1.

%Y Cf. A290648. A257594 is the hexagonal tiling equivalent. A008642 is the square tiling equivalent (if prepended with 7 zeros).

%K nonn,more

%O 6,9

%A _Abraham Maxfield_, Jun 10 2024