Number of n X 3 nonconsecutive tableaux.

A214159

Number of n X 3 nonconsecutive tableaux.

Terms

    a(0) =1a(1) =0a(2) =1a(3) =6a(4) =72a(5) =960a(6) =14257a(7) =228738a(8) =3896062a(9) =69590192a(10) =1291977768a(11) =24767357824a(12) =487787117424

External references