Binomial transform of A084239.

Terms

a(0) =1a(1) =3a(2) =8a(3) =20a(4) =49a(5) =119a(6) =289a(7) =707a(8) =1749a(9) =4379a(10) =11092a(11) =28412a(12) =73573a(13) =192535a(14) =508918a(15) =1357770a(16) =3653343a(17) =9905437a(18) =27040975a(19) =74269569a(20) =205091177a(21) =569078255a(22) =1585839062a(23) =4436191950a(24) =12452408525a(25) =35062157207a(26) =99000292173a(27) =280242836387a(28) =795124827781