Row sums of triangle A279396.

Terms

a(0) =1a(1) =1a(2) =4a(3) =9a(4) =25a(5) =69a(6) =217a(7) =745a(8) =2801a(9) =11399a(10) =49859a(11) =232639a(12) =1151397a(13) =6017345a(14) =33084489a(15) =190780154a(16) =1150686536a(17) =7241926820a(18) =47455774001a(19) =323158817943