a(n) = floor(10000*log_2(n)).

Terms

a(0) =0a(1) =10000a(2) =15849a(3) =20000a(4) =23219a(5) =25849a(6) =28073a(7) =30000a(8) =31699a(9) =33219a(10) =34594a(11) =35849a(12) =37004a(13) =38073a(14) =39068a(15) =40000a(16) =40874a(17) =41699a(18) =42479a(19) =43219a(20) =43923a(21) =44594a(22) =45235a(23) =45849a(24) =46438a(25) =47004a(26) =47548a(27) =48073