  The mathematical constant pi has recently been computed up to
22,459,157,718,361 decimal and 18,651,926,753,033 hexadecimal digits. As a
simple check for the normality of pi, the frequencies of all sequences with
length one, two and three in the base 10 and base 16 representations are
extracted. All evaluated frequencies are found to be consistent with the
hypothesis of pi being a normal number in these bases.
