Number of n X n binary arrays with rows and columns lexicographically nondecreasing and row and column sums nonincreasing.
A266541
Number of n X n binary arrays with rows and columns lexicographically nondecreasing and row and column sums nonincreasing.
Terms
- a(0) =2a(1) =3a(2) =5a(3) =12a(4) =36a(5) =176a(6) =1688a(7) =48167a(8) =4283651
External references
- oeis: A266541