Row sums of triangle A111536.

Terms

a(0) =1a(1) =2a(2) =7a(3) =34a(4) =211a(5) =1564a(6) =13291a(7) =126430a(8) =1326211a(9) =15184744a(10) =188348659a(11) =2515991290a(12) =36018842875a(13) =550317892372