Greatest integer k such that k/2^n < sqrt(1/5).

Terms

a(0) =0a(1) =0a(2) =1a(3) =3a(4) =7a(5) =14a(6) =28a(7) =57a(8) =114a(9) =228a(10) =457a(11) =915a(12) =1831a(13) =3663a(14) =7327a(15) =14654a(16) =29308a(17) =58617a(18) =117234a(19) =234468a(20) =468937a(21) =937874a(22) =1875749a(23) =3751499a(24) =7502999a(25) =15005998a(26) =30011996a(27) =60023992a(28) =120047985a(29) =240095970