Odd numbers n such that 2n is a term in A247665.

A249556

Odd numbers n such that 2n is a term in A247665.

Terms

    a(0) =1a(1) =7a(2) =61a(3) =433a(4) =883a(5) =2003a(6) =4241a(7) =6121a(8) =26293a(9) =52903

External references