Row sums of triangle in A147724.

Terms

a(0) =1a(1) =2a(2) =10a(3) =68a(4) =502a(5) =3770a(6) =28408a(7) =214202a(8) =1615330a(9) =12181748a(10) =91867102a(11) =692804690a(12) =5224704088a(13) =39401485202a(14) =297141621850