Season Runs
1 4
2 16
3 64
f(x) = 4 4^x-1 ; where x is the number of seasons.
f(1) = 4 4^1-1 ⇒ 4 1 = 4
f(2) = 4 4^2-1 ⇒ 4 4^1 = 16
f(3) = 4 4^3-1 ⇒ 4 4^2 = 4 16 = 64
f(4) = 4 4^4-1 ⇒ 4 4^3 = 4 64 = 256
f(5) = 4 4^5-1 ⇒ 4 4^4 = 4 256 = 1024
It would take the baseball player 5 seasons to score 1024 runs.