a(n) is the denominator of the fraction h/k with h and k coprime palindrome positive integers at which abs(h/k-Pi) is minimal, with the numerator h of n digits.

A364845

a(n) is the denominator of the fraction h/k with h and k coprime palindrome positive integers at which abs(h/k-Pi) is minimal, with the numerator h of n digits.

Terms

    a(0) =1a(1) =7a(2) =151a(3) =494a(4) =11511a(5) =93039a(6) =2332332a(7) =9966699

External references