Row sums of A109876.

Terms

a(0) =1a(1) =5a(2) =23a(3) =108a(4) =574a(5) =3553a(6) =25451a(7) =207744a(8) =1904010a(9) =19357873a(10) =216180227a(11) =2630384900a(12) =34634700918a(13) =490653944569