Irregular triangular array read by rows. T(n,k) is the number of n X n Boolean relation matrices whose row span is k, n >= 0, 1 <= k <= 2^n.
A362943
Irregular triangular array read by rows. T(n,k) is the number of n X n Boolean relation matrices whose row span is k, n >= 0, 1 <= k <= 2^n.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =9a(5) =4a(6) =2a(7) =1a(8) =49a(9) =144a(10) =198a(11) =78a(12) =36a(13) =0a(14) =6a(15) =1a(16) =225a(17) =2500a(18) =9650a(19) =15864a(20) =17640a(21) =8784a(22) =6936a(23) =2304a(24) =1320a(25) =0a(26) =288a(27) =0a(28) =0a(29) =0
External references
- oeis: A362943