Square root of A203764(n).

Terms

a(0) =1a(1) =3a(2) =6a(3) =49a(4) =147a(5) =2028a(6) =8112a(7) =159201a(8) =796005a(9) =20342448a(10) =122054688a(11) =3850078401a(12) =26950548807