Row sums of triangle A104446.

Terms

a(0) =1a(1) =3a(2) =6a(3) =13a(4) =33a(5) =101a(6) =372a(7) =1624a(8) =8263a(9) =48285a(10) =320031a(11) =2380114a(12) =19675986a(13) =179314868a(14) =1788473424a(15) =19398149629a(16) =227510745445