Binomial transform of abs(A134967).

Terms

a(0) =1a(1) =3a(2) =6a(3) =12a(4) =26a(5) =60a(6) =140a(7) =320a(8) =712a(9) =1552a(10) =3344a(11) =7168a(12) =15328a(13) =32704a(14) =69568a(15) =147456a(16) =311424a(17) =655616a(18) =1376512a(19) =2883584a(20) =6028800a(21) =12581888a(22) =26213376a(23) =54525952a(24) =113248256a(25) =234885120a(26) =486543360a(27) =1006632960a(28) =2080366592