a(n) = permanent M_n where M_n is the n X n matrix m(i,j) = (i-j)^2.
A278857
a(n) = permanent M_n where M_n is the n X n matrix m(i,j) = (i-j)^2.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =8a(4) =676a(5) =49600a(6) =10335908a(7) =2658757248
External references
- oeis: A278857