Number of nX7 0..1 arrays with every repeated value in every row and column greater than the previous repeated value.

A267718

Number of nX7 0..1 arrays with every repeated value in every row and column greater than the previous repeated value.

Terms

    a(0) =20a(1) =400a(2) =1866a(3) =7879a(4) =20226a(5) =54887a(6) =116036a(7) =255009a(8) =481390a(9) =932245a(10) =1627470a(11) =2893983a(12) =4765598a(13) =7967260a(14) =12535320a(15) =20000374a(16) =30337594a(17) =46665892a(18) =68699820a(19) =102616722a(20) =147369478a(21) =214889742a(22) =302259706a(23) =431988823a(24) =597033836a(25) =838908027

External references