Row sums of A093919.

Terms

a(0) =1a(1) =4a(2) =15a(3) =40a(4) =205a(5) =276a(6) =1939a(7) =4432a(8) =13689a(9) =18100a(10) =199111a(11) =200784a(12) =2610205a(13) =3136420a(14) =3191595a(15) =7012576a(16) =119213809a(17) =137103012a(18) =2604957247a(19) =2605199080a(20) =2608367181a(21) =3084857644a(22) =70951725835a(23) =71062911792a(24) =355315542025a(25) =442803520276