a(n) is the permanent of the symmetric Toeplitz matrix of order n whose element (i,j) equals abs(i-j) or 1 if i = j.
A374140
a(n) is the permanent of the symmetric Toeplitz matrix of order n whose element (i,j) equals abs(i-j) or 1 if i = j.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =11a(4) =117a(5) =2083a(6) =55482a(7) =2063149a(8) =102176977a(9) =6490667261a(10) =514651043730
External references
- oeis: A374140