a(n) = numerator of sum of the reciprocals of all terms in rows 1 through n of table A126336.
A126338
a(n) = numerator of sum of the reciprocals of all terms in rows 1 through n of table A126336.
Terms
- a(0) =1a(1) =2a(2) =5a(3) =7a(4) =13a(5) =59a(6) =413a(7) =3881a(8) =405331a(9) =2845313a(10) =17135191a(11) =274111423a(12) =4924469a(13) =105188a(14) =5188129a(15) =3877908109a(16) =984131084791
External references
- oeis: A126338