Row sums of triangle A123610.

Terms

a(0) =1a(1) =2a(2) =4a(3) =8a(4) =20a(5) =52a(6) =160a(7) =492a(8) =1620a(9) =5408a(10) =18504a(11) =64132a(12) =225440a(13) =800048a(14) =2865720a(15) =10341208a(16) =37568340a(17) =137270956a(18) =504176992a(19) =1860277044a(20) =6892335720a(21) =25631327688a(22) =95640894056a(23) =357975249028