Number of (n+1) X 6 0..1 arrays with column and row pair sums b(i,j)=a(i,j)+a(i,j-1) and c(i,j)=a(i,j)+a(i-1,j) nondecreasing in column and row directions, respectively.

A204648

Number of (n+1) X 6 0..1 arrays with column and row pair sums b(i,j)=a(i,j)+a(i,j-1) and c(i,j)=a(i,j)+a(i-1,j) nondecreasing in column and row directions, respectively.

Terms

    a(0) =80a(1) =137a(2) =284a(3) =571a(4) =1076a(5) =1918a(6) =3261a(7) =5329a(8) =8408a(9) =12867a(10) =19162a(11) =27859a(12) =39640a(13) =55328a(14) =75895a(15) =102489a(16) =136444a(17) =179309a(18) =232860a(19) =299131a(20) =380428a(21) =479362a(22) =598865a(23) =742225a(24) =913104a(25) =1115575a(26) =1354142a(27) =1633779a(28) =1959952a(29) =2338660

External references