Number of free holey polyiamonds of n cells with simply-connected interiors.

A359524

Number of free holey polyiamonds of n cells with simply-connected interiors.

Terms

    a(0) =1a(1) =4a(2) =25a(3) =107a(4) =448a(5) =1701a(6) =6216a(7) =21771a(8) =74339a(9) =248379

External references