Number of n X n (0,1)-matrices with two 1's in each row and permanent equal to 8.
A174638
Number of n X n (0,1)-matrices with two 1's in each row and permanent equal to 8.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =1350a(6) =529200a(7) =172872000a(8) =58352555520
External references
- oeis: A174638