a(n) = numerator of Sum_{i=1..n} 1/A031216(i).

Terms

a(0) =1a(1) =5a(2) =31a(3) =247a(4) =529a(5) =559a(6) =1747a(7) =181a(8) =4651a(9) =147331a(10) =1276726a(11) =10379813a(12) =10527373a(13) =501426731a(14) =507546131a(15) =14874882499a(16) =120130384067