Row sums of A232642, when seen as a triangle read by rows.

Terms

a(0) =1a(1) =6a(2) =24a(3) =74a(4) =220a(5) =626a(6) =1754a(7) =4860a(8) =13390a(9) =36762a(10) =100728a(11) =275666a(12) =753898a(13) =2060924a(14) =5632550a(15) =15391650a(16) =42056008a(17) =114907626a(18) =313947186a(19) =857741852a(20) =2343430222