Column 4 of triangle in A144633.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =1a(5) =-10a(6) =85a(7) =-700a(8) =5565a(9) =-39270a(10) =163625a(11) =2002000a(12) =-80455375a(13) =1796144350a(14) =-33225267075a(15) =532997965500