a(n) is the n-digit positive number with no trailing zeros and coprime to its digital reversal R(a(n)) at which abs(a(n)/R(a(n))-Pi) is minimized.

A355622

a(n) is the n-digit positive number with no trailing zeros and coprime to its digital reversal R(a(n)) at which abs(a(n)/R(a(n))-Pi) is minimized.

Terms

    a(0) =1a(1) =92a(2) =581a(3) =5471a(4) =52861a(5) =998713a(6) =7774742a(7) =93630892a(8) =422334431a(9) =9190135292a(10) =45425395441a(11) =472539314051

External references