Number of tilings of a fortress (or Penta-Aztec-Diamond) of order n.

A232997

Number of tilings of a fortress (or Penta-Aztec-Diamond) of order n.

Terms

    a(0) =1a(1) =1a(2) =5a(3) =50a(4) =625a(5) =15625a(6) =1953125a(7) =488281250a(8) =152587890625

External references