Numerator of (1/n)*Sum_{k=0..n-1} 1/binomial(n-1,k) for n>0 else 0.

Terms

a(0) =0a(1) =1a(2) =1a(3) =5a(4) =2a(5) =8a(6) =13a(7) =151a(8) =32a(9) =83a(10) =73a(11) =1433a(12) =647a(13) =15341a(14) =28211a(15) =10447a(16) =1216a(17) =19345a(18) =18181a(19) =651745a(20) =1542158a(21) =1463914a(22) =2786599a(23) =122289917a(24) =29229544a(25) =140001721a(26) =134354573a(27) =774885169a(28) =745984697a(29) =41711914513