278567575

Appears in sequences

• a(n) = floor(1/sin(x(n))) where x(n) is Pi truncated at the n-th decimal digit.at n=8A074783
• a(n) minimizes (over the integers) the absolute difference between Pi and x(n) + 1/a(n), where x(n) is Pi truncated at the n-th decimal digit.at n=8A286742
• Minimum k such that all partial sums of the Leibniz series 4/1 - 4/3 + 4/5 - ... with k or more terms give a value of Pi correct to n decimal digits.at n=8A342584