Row sums of triangle A134380.

Terms

a(0) =1a(1) =2a(2) =5a(3) =15a(4) =52a(5) =205a(6) =921a(7) =4766a(8) =28685a(9) =201159a(10) =1630840a(11) =15071725a(12) =156331161a(13) =1794763970a(14) =22548418541a(15) =307236496071