Row sums of A098546.

Terms

a(0) =1a(1) =1a(2) =3a(3) =7a(4) =21a(5) =51a(6) =148a(7) =365a(8) =983a(9) =2461a(10) =6360a(11) =15687a(12) =39757a(13) =97033a(14) =240425a(15) =582622a(16) =1421273a(17) =3409861a(18) =8222920a(19) =19565707a(20) =46680362a(21) =110309476a(22) =260876036a(23) =612293443a(24) =1437616751a(25) =3354111156a(26) =7823501148a(27) =18157700800a(28) =42112132458a(29) =97262110782