Number of (n+1)X(1+1) 0..3 arrays x(i,j) with row sums sum{x(i,j), j=1..1+1} nondecreasing, and column sums sum{i^2*x(i,j), i=1..n+1} nondecreasing.

A233351

Number of (n+1)X(1+1) 0..3 arrays x(i,j) with row sums sum{x(i,j), j=1..1+1} nondecreasing, and column sums sum{i^2*x(i,j), i=1..n+1} nondecreasing.

Terms

    a(0) =80a(1) =556a(2) =3362a(3) =18445a(4) =94060a(5) =454538a(6) =2109213a(7) =9486430a(8) =41642985a(9) =179349952a(10) =760872901a(11) =3189476955a(12) =13243160545a(13) =54571364182a(14) =223510706911a(15) =911004934329

External references