Sum of the j-th number with binary weight n-j+1 over all j in [n].

Terms

a(0) =0a(1) =1a(2) =5a(3) =16a(4) =40a(5) =92a(6) =193a(7) =401a(8) =812a(9) =1632a(10) =3261a(11) =6526a(12) =13030a(13) =26049a(14) =52013a(15) =103974a(16) =207797a(17) =415496a(18) =830636a(19) =1661086a(20) =3321498a(21) =6642591a(22) =13283920a(23) =26567121a(24) =53131653a(25) =106261922a(26) =212518857a(27) =425034976a(28) =850060303a(29) =1700115399