Row sums of A131235.

Terms

a(0) =1a(1) =2a(2) =5a(3) =14a(4) =48a(5) =190a(6) =873a(7) =4504a(8) =25989a(9) =164686a(10) =1141079a(11) =8550794a(12) =69034238a(13) =596165874a(14) =5489044279a(15) =53611773888a(16) =553937164945