Starting from k=7, each subsequent term is the next larger odd k such that A005940(k) >= k and the ratio A005940(k)/k is nearer to 1.0 than for any previous k in the sequence.

A364572

Starting from k=7, each subsequent term is the next larger odd k such that A005940(k) >= k and the ratio A005940(k)/k is nearer to 1.0 than for any previous k in the sequence.

Terms

    a(0) =7a(1) =19a(2) =321a(3) =139307a(4) =262365a(5) =264245a(6) =528577

External references