bulbasaur
Not quite e^(-(x-μ)²/(2σ²)) / (σ√(2π))
Ever since generation one, we used a 3-digit numbering system (001 for Bulbasaur, 483 for Dialga, etc). So, around generation 8, we start to run out of numbers. Do you think Nintendo will break the tradition of using only three digits (and Bulbasaur be known as #0001, Dialga as 0483) or will it stop making new Pokémon?