Just curious, but does anyone know if it is possible to do recursion on excel? There are a lot of easy problems they could ask us that are virtually impossible without recursion (e.g. factorials, prime factorization, perfect number, etc.) I've talked to all the programmers at my school, as well as my computer science teacher, and none of them have come up with anything.
Life List: n. A list of bird species definitively seen by a birdwatcher.
PacificGoldenPlover's Life List : 319
Most recent lifer: Red-throated Loon
2014 (Mira Loma/Troy/Regionals/States/Nationals)
Dynamic Planet (2/2/1/1/1)
Designer Genes (1/4/1/13 (???)/13 (figures)
Water Quality (1/1/3/1/3)