Number of n X n permutation matrices in which the sums of the entries of each NorthEast-SouthWest diagonal are 0 or 1.
A099152
Number of n X n permutation matrices in which the sums of the entries of each NorthEast-SouthWest diagonal are 0 or 1.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =3a(4) =7a(5) =23a(6) =83a(7) =405a(8) =2113a(9) =12657a(10) =82297a(11) =596483a(12) =4698655a(13) =40071743a(14) =367854835a(15) =3622508685a(16) =38027715185a(17) =424060091065
External references
- oeis: A099152