Row sums of the power tree A114622.

Terms

a(0) =1a(1) =2a(2) =7a(3) =19a(4) =54a(5) =164a(6) =476a(7) =1417a(8) =4087a(9) =12589a(10) =37818a(11) =116828a(12) =358277a(13) =1106870a(14) =3460676a(15) =10813998a(16) =34339769a(17) =109194390a(18) =350181146a(19) =1126919513a(20) =3634208553a(21) =11774823887a(22) =38335906599a(23) =125461951555a(24) =411934520324