Row sums of the triangle A190152.

Terms

a(0) =1a(1) =2a(2) =12a(3) =65a(4) =351a(5) =1897a(6) =10252a(7) =55405a(8) =299426a(9) =1618192a(10) =8745217a(11) =47261895a(12) =255418101a(13) =1380359512a(14) =7459895657a(15) =40315615410a(16) =217878227876