Fifth column (m=4) of triangle A090447.

Terms

a(0) =96a(1) =2500a(2) =27000a(3) =180075a(4) =878080a(5) =3429216a(6) =11340000a(7) =32942250a(8) =86248800a(9) =207352860a(10) =464199736a(11) =978193125a(12) =1956864000a(13) =3741740800a(14) =6876627840a(15) =12202737156a(16) =20988540000a(17) =35103820500a(18) =57249238200a(19) =91254750895a(20) =142462526976a(21) =218212500000a(22) =328451500000a(23) =486489948750