Numerator of Sum_{k=1..n} 1/(n+k).

Terms

a(0) =1a(1) =7a(2) =37a(3) =533a(4) =1627a(5) =18107a(6) =237371a(7) =95549a(8) =1632341a(9) =155685007a(10) =156188887a(11) =3602044091a(12) =18051406831a(13) =7751493599a(14) =225175759291