Fifth row of number array A084061.

Terms

a(0) =1a(1) =1a(2) =8a(3) =63a(4) =656a(5) =8525a(6) =133120a(7) =2430547a(8) =50839808a(9) =1199150649a(10) =31495553024a(11) =911770726823