Row sums of triangle A131404.

Terms

a(0) =1a(1) =2a(2) =7a(3) =16a(4) =37a(5) =82a(6) =179a(7) =384a(8) =813a(9) =1702a(10) =3531a(11) =7272a(12) =14889a(13) =30342a(14) =61603a(15) =124700a(16) =251825a(17) =507582a(18) =1021535a(19) =2053388a(20) =4123481a(21) =8274002a(22) =16591767a(23) =33254356a(24) =66623317a(25) =133432082a(26) =267164239a(27) =534814024a(28) =1070413693a(29) =2142098602