Row sums of triangle A156070.

Terms

a(0) =1a(1) =2a(2) =2a(3) =4a(4) =6a(5) =12a(6) =23a(7) =46a(8) =90a(9) =174a(10) =330a(11) =616a(12) =1133a(13) =2058a(14) =3698a(15) =6584a(16) =11630a(17) =20404a(18) =35587a(19) =61750a(20) =106666a(21) =183522a(22) =314642a(23) =537744a(24) =916441a(25) =1557842a(26) =2642018a(27) =4471276a(28) =7552470a(29) =12734364