Stanford mathematicians have discovered a new property of prime numbers. Admittedly, without proof, but they tested it across 400 billion examples. It turns out that the odds of a prime number ending in 9 being followed by a number ending in 1 are 65% higher than the odds of it being followed by another number ending in 9.
https://www.quantamagazine.org/20160313-mathematicians-discover-prime-conspiracy/
