a(n) is the permanent of the square matrix A(n) of order 2*n whose generic entry is A(i, j) = n*(2*i - (-1)^i - 3) + 2*j - (-1)^j/2 + (-1)^i - 3/2 with 1 <= i,j <= 2*n.
A390679
a(n) is the permanent of the square matrix A(n) of order 2*n whose generic entry is A(i, j) = n*(2*i - (-1)^i - 3) + 2*j - (-1)^j/2 + (-1)^i - 3/2 with 1 <= i,j <= 2*n.
Terms
- a(0) =1a(1) =2a(2) =25456a(3) =4237316640
External references
- oeis: A390679