A and B play the following game: starting with a pile of n stones, A and B take turns, each removing 1, 2, 3 or 4 stones from the pile. The player who removes the last stone loses the game. A goes first.
For which values of n is this game a forced win by B? By A? (Hint: Try small values of n starting
with n = 1. Do you see a pattern?)

1c) the number 131 is a term in the sequence defined by the explicit rule f(n)=5n-4. which term in the sequence is 131? 2a) write the first four terms of the function f(n)=n^2-1 2b) what is the 10th term of the sequence defined by the explicit rule f(n)=n^2-1 2c) the number 224 is a term in the sequence defined by the explicit rule f(n)=n^2-1. which term in the sequence is 224?