Partial sums of floor(2^n/31).

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =1a(5) =3a(6) =7a(7) =15a(8) =31a(9) =64a(10) =130a(11) =262a(12) =526a(13) =1054a(14) =2111a(15) =4225a(16) =8453a(17) =16909a(18) =33821a(19) =67646a(20) =135296a(21) =270596a(22) =541196a(23) =1082396a(24) =2164797a(25) =4329599a(26) =8659203a(27) =17318411a(28) =34636827a(29) =69273660