Partial sums of A024810(n) = floor(2^(n+1)/Pi).

Terms

a(0) =1a(1) =3a(2) =8a(3) =18a(4) =38a(5) =78a(6) =159a(7) =321a(8) =646a(9) =1297a(10) =2600a(11) =5207a(12) =10422a(13) =20852a(14) =41712a(15) =83433a(16) =166876a(17) =333762a(18) =667534a(19) =1335078a(20) =2670166a(21) =5340342a(22) =10680695a(23) =21361402a(24) =42722816a(25) =85445645a(26) =170891304a(27) =341782622a(28) =683565259a(29) =1367130534