Number of square (0,1)-matrices with exactly n entries equal to 1 and no zero row or columns.
A104602
Number of square (0,1)-matrices with exactly n entries equal to 1 and no zero row or columns.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =10a(4) =70a(5) =642a(6) =7246a(7) =97052a(8) =1503700a(9) =26448872a(10) =520556146a(11) =11333475922a(12) =270422904986
External references
- oeis: A104602