Fifth column (m=4) of triangle A060102.

Terms

a(0) =1a(1) =19a(2) =140a(3) =660a(4) =2370a(5) =7062a(6) =18348a(7) =42900a(8) =92235a(9) =185185a(10) =351208a(11) =634712a(12) =1100580a(13) =1841100a(14) =2984520a(15) =4705464a(16) =7237461a(17) =10887855a(18) =16055380a(19) =23250700a(20) =33120230a(21) =46473570a(22) =64314900a(23) =87878700