Row sums of triangle A123305.

Terms

a(0) =1a(1) =2a(2) =5a(3) =18a(4) =93a(5) =650a(6) =5825a(7) =64486a(8) =858525a(9) =13460814a(10) =244360845a(11) =5063982498a(12) =118379934453