a(n) is the number of n X n nonsingular Hermitian Toeplitz matrices using all the integers 1, 2, ..., n and with all off-diagonal elements purely imaginary.
A364229
a(n) is the number of n X n nonsingular Hermitian Toeplitz matrices using all the integers 1, 2, ..., n and with all off-diagonal elements purely imaginary.
Terms
- a(0) =1a(1) =2a(2) =5a(3) =24a(4) =120a(5) =719a(6) =5040a(7) =40317a(8) =362874a(9) =3628798
External references
- oeis: A364229