Negative value of coefficient of x^(n-6) in the characteristic polynomial of a certain n X n integer circulant matrix.
A127411
Negative value of coefficient of x^(n-6) in the characteristic polynomial of a certain n X n integer circulant matrix.
Terms
- a(0) =27216a(1) =453789a(2) =3866624a(3) =22674816a(4) =103500000a(5) =393286542a(6) =1297410048a(7) =3822832728a(8) =10267329072a(9) =25518796875a(10) =59378761728a(11) =130535973152a(12) =273106821312a(13) =547049504268
External references
- oeis: A127411