a(n) = (1/n!)*A023043(n).

Terms

a(0) =265a(1) =2119a(2) =9403a(3) =30637a(4) =81901a(5) =190435a(6) =398959a(7) =770713a(8) =1395217a(9) =2394751a(10) =3931555a(11) =6215749a(12) =9513973a(13) =14158747a(14) =20558551a(15) =29208625a(16) =40702489a(17) =55744183a(18) =75161227a(19) =99918301a(20) =131131645a(21) =170084179a(22) =218241343a(23) =277267657a(24) =349044001a(25) =435685615