import numpy as np

N, W, K = map(int, input().split())
A = tuple(map(int, input().split()))
MOD = 10 ** 9 + 7


def pow_matrix_mod(x, n, mod=MOD):
    x = x.astype(object)
    if not n:
        return np.eye(len(x), dtype=object)
    if n % 2 == 0:
        return pow_matrix_mod(x @ x % mod, n // 2) % mod
    else:
        return x @ pow_matrix_mod(x @ x % mod, (n - 1) // 2) % mod


dp1 = [0] * (2 * W + 1)
dp1[0] = 1
for i in range(W + 1):
    dp1[i] %= MOD
    x = dp1[i]
    for a in A:
        if i + a <= W:
            dp1[i + a] += x

dp2 = [0] * (2 * W + 1)
dp2[0] = 1
for i in range(2 * W + 1):
    dp2[i] %= MOD
    if i == W:
        dp2[i] = 0
        continue
    x = dp2[i]
    for a in A:
        if i + a <= 2 * W:
            dp2[i + a] += x

matr = np.array([[0, dp2[2 * W]], [1, dp1[W]]], dtype=int)
print(pow_matrix_mod(matr, K)[1, 1])