Permanent of the n-th principal submatrix of A204255.
A204256
Permanent of the n-th principal submatrix of A204255.
Terms
- a(0) =1a(1) =3a(2) =19a(3) =86a(4) =1060a(5) =13276a(6) =215308a(7) =3086544a(8) =68937280a(9) =1552257216a(10) =40750688448a(11) =987692033664
External references
- oeis: A204256