Row sums of triangle A129577.

Terms

a(0) =1a(1) =2a(2) =8a(3) =35a(4) =167a(5) =862a(6) =4779a(7) =28287a(8) =177833a(9) =1182141a(10) =8276861a(11) =60830800a(12) =467892036a(13) =3756528046a(14) =31407155606a(15) =272873483535