Row sums of triangle A086612.

Terms

a(0) =1a(1) =2a(2) =3a(3) =8a(4) =27a(5) =95a(6) =346a(7) =1298a(8) =4982a(9) =19481a(10) =77344a(11) =310981a(12) =1263768a(13) =5182584a(14) =21420400a(15) =89139754a(16) =373179358a(17) =1570606386a(18) =6641563144a(19) =28204255713a(20) =120231876230a(21) =514315720218