3141593

Appears in sequences

• Decimal expansion of Pi rounded to n places.at n=6A011546
• A relationship between Pi and the Mandelbrot set. a(n) = number of iterations of z^2 + c that c-values -0.75 + x*i go through before escaping, where x = 10^(-n). Lim_{n->inf} a(n) * x = Pi.at n=6A097486