Row sums of triangle A163842.

Terms

a(0) =1a(1) =13a(2) =109a(3) =765a(4) =4881a(5) =29369a(6) =169919a(7) =956237a(8) =5272945a(9) =28632525a(10) =153638211a(11) =816715073a(12) =4309138419a(13) =22598433555a(14) =117926579385a(15) =612863125965