Lexicographically earliest sequence of positive integers a(1), a(2), a(3), ... such that for any n > 0, Sum_{k = 1..n} 1 / (k*a(k)) < 1.

A374663

Lexicographically earliest sequence of positive integers a(1), a(2), a(3), ... such that for any n > 0, Sum_{k = 1..n} 1 / (k*a(k)) < 1.

Terms

    a(0) =2a(1) =2a(2) =2a(3) =4a(4) =10a(5) =201a(6) =34458a(7) =1212060151

External references