Write Pi = Sum_{n>=1} 1/sqrt(a(n)), where each a(n) is minimal and unique and the sum approaches Pi from below.

A091930

Write Pi = Sum_{n>=1} 1/sqrt(a(n)), where each a(n) is minimal and unique and the sum approaches Pi from below.

Terms

    a(0) =1a(1) =2a(2) =3a(3) =4a(4) =8a(5) =77929

External references