Third unsigned column of triangle A051379.

A051561

Third unsigned column of triangle A051379.

Terms

    a(0) =0a(1) =0a(2) =1a(3) =27a(4) =539a(5) =9850a(6) =176554a(7) =3197348a(8) =59354028a(9) =1137868848a(10) =22614500016a(11) =466814750688

External references