Number of ways to dissect a square into n squares.

Terms

a(0) =1a(1) =0a(2) =0a(3) =1a(4) =0a(5) =4a(6) =8a(7) =36a(8) =105a(9) =384a(10) =1340a(11) =4975a(12) =17676a(13) =69052a(14) =270716a(15) =1093218a(16) =4455047a(17) =18246018