Number of n X n matrices over {0,1,2} with all row and column sums equal to 1 or 2.
A062156
Number of n X n matrices over {0,1,2} with all row and column sums equal to 1 or 2.
Terms
- a(0) =1a(1) =2a(2) =13a(3) =189a(4) =4842a(5) =190080a(6) =10520010a(7) =777018690a(8) =73646397720
External references
- oeis: A062156