Number of n X n binary arrays with rows and columns, considered as binary numbers, in strictly increasing order, and no more than 2 ones in any row or column.
A162101
Number of n X n binary arrays with rows and columns, considered as binary numbers, in strictly increasing order, and no more than 2 ones in any row or column.
Terms
- a(0) =2a(1) =3a(2) =11a(3) =44a(4) =203a(5) =1083a(6) =6424a(7) =41908a(8) =297357a(9) =2274237a(10) =18618870a(11) =162222857a(12) =1496925971a(13) =14568783883a(14) =149016495539
External references
- oeis: A162101