Triangle read by rows: T(n,k) is the number of n X n Boolean matrices with Schein rank k, 0 <= k <= n.
A355333
Triangle read by rows: T(n,k) is the number of n X n Boolean matrices with Schein rank k, 0 <= k <= n.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =9a(5) =6a(6) =1a(7) =49a(8) =306a(9) =156a(10) =1a(11) =225a(12) =8550a(13) =40656a(14) =16104a(15) =1a(16) =961a(17) =194850a(18) =5771100a(19) =21165720a(20) =6421800
External references
- oeis: A355333