Row sums of triangle in A074829.

Terms

a(0) =1a(1) =2a(2) =6a(3) =14a(4) =32a(5) =70a(6) =150a(7) =316a(8) =658a(9) =1358a(10) =2784a(11) =5678a(12) =11534a(13) =23356a(14) =47178a(15) =95110a(16) =191440a(17) =384854a(18) =772902a(19) =1550972a(20) =3110306a(21) =6234142a(22) =12490176a(23) =25015774a(24) =50088862a(25) =100270460a(26) =200690970a(27) =401624726a(28) =803642288a(29) =1607920198