Fifth column (m=4) of triangle A060098.

Terms

a(0) =1a(1) =5a(2) =19a(3) =55a(4) =140a(5) =316a(6) =660a(7) =1284a(8) =2370a(9) =4170a(10) =7062a(11) =11550a(12) =18348a(13) =28380a(14) =42900a(15) =63492a(16) =92235a(17) =131703a(18) =185185a(19) =256685a(20) =351208a(21) =474760a(22) =634712a(23) =839800a(24) =1100580a(25) =1429428a(26) =1841100a(27) =2352732a(28) =2984520a(29) =3759720