Row sums of triangle A124526.

Terms

a(0) =1a(1) =1a(2) =2a(3) =5a(4) =14a(5) =46a(6) =162a(7) =641a(8) =2656a(9) =12092a(10) =56956a(11) =290636a(12) =1523088a(13) =8559980a(14) =49163792a(15) =300514337a(16) =1870652672a(17) =12318376190a(18) =82394305842a(19) =580168452664