Equation illustrates the relationship in between PVAn, A, K and n. So manipulating this a bit:
We find that
A = PVAn [(k (1 + k)n)/((1 +k)n - 1)]
[(k (1 + k)n)/((1 +k)n - 1)] in equation 13 is inverse of PVIFAk,n and is termed as the capital recovery factor.