n,S = map(int,input().split())
A = list(map(int,input().split()))
A1 = A[:n//2]
A2 = A[n//2:]

def makeaccum(A,S):
    dicA = {}
    dicA[0] = 1
    for a in A:
        ndicA = {}
        for k,v in dicA.items():
            now = a
            for j in range(1,30):
                if k+now <= S:
                    ndicA[k+now] = ndicA.get(k+now,0)+v
                now *= a
        dicA = ndicA
    s = sorted(set(dicA.keys()))
    accum = [0]+[dicA[i] for i in s]
    return accum,s

accum1,s1 = makeaccum(A1,S)
accum2,s2 = makeaccum(A2,S)
for i in range(len(accum2)-1):
    accum2[i+1] += accum2[i]
ans = 0
now = 0
l = len(s2)
for a,s in zip(accum1[1:][::-1],s1[::-1]):
    while now < l and s+s2[now] <= S:
        now += 1
    ans += a*accum2[now]
print(ans)