Numerator of Sum_{k=0..n} 1/binomial(n,k).

Terms

a(0) =1a(1) =2a(2) =5a(3) =8a(4) =8a(5) =13a(6) =151a(7) =256a(8) =83a(9) =146a(10) =1433a(11) =2588a(12) =15341a(13) =28211a(14) =52235a(15) =19456a(16) =19345a(17) =36362a(18) =651745a(19) =6168632a(20) =1463914a(21) =2786599a(22) =122289917a(23) =233836352a(24) =140001721a(25) =268709146a(26) =774885169a(27) =1491969394a(28) =41711914513a(29) =80530073893