Numerators of b(n) = b(n-1)/2 + 1/(2*n), b(0)=0.

Terms

a(0) =0a(1) =1a(2) =1a(3) =5a(4) =1a(5) =4a(6) =13a(7) =151a(8) =16a(9) =83a(10) =73a(11) =1433a(12) =647a(13) =15341a(14) =28211a(15) =10447a(16) =608a(17) =19345a(18) =18181a(19) =651745a(20) =771079a(21) =731957a(22) =2786599a(23) =122289917a(24) =14614772a(25) =140001721a(26) =134354573a(27) =774885169a(28) =745984697a(29) =41711914513