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The mathematical constant pi has recently been computed up to22,459,157,718,361 decimal and 18,651,926,753,033 hexadecimal digits. As asimple check for the normality of pi, the frequencies of all sequences withlength one, two and three in the base 10 and base 16 representations areextracted. All evaluated frequencies are found to be consistent with thehypothesis of pi being a normal number in these bases.

Digit Statistics of the First 22.4 Trillion Decimal Digits of Pi