Number of n X 1 0..2 arrays with every repeated value in every row and column greater than or equal to the previous repeated value.

A268013

Number of n X 1 0..2 arrays with every repeated value in every row and column greater than or equal to the previous repeated value.

Terms

    a(0) =3a(1) =9a(2) =27a(3) =78a(4) =222a(5) =622a(6) =1722a(7) =4719a(8) =12821a(9) =34575a(10) =92637a(11) =246788a(12) =654120a(13) =1725900a(14) =4535172a(15) =11872941a(16) =30977943a(17) =80575109a(18) =208983471a(19) =540606474a(20) =1395061474a(21) =3591893274a(22) =9228660318a(23) =23664610747a(24) =60570324105a(25) =154763821419a(26) =394795932561

External references