Row sums of triangle A173108.

Terms

a(0) =1a(1) =1a(2) =3a(3) =6a(4) =18a(5) =58a(6) =221a(7) =935a(8) =4361a(9) =22082a(10) =120336a(11) =700652a(12) =4333933a(13) =28345089a(14) =195233255a(15) =1411303634a(16) =10675375402a(17) =84276173438a(18) =692752181561