N,K=map(int,input().split())
A=sorted(map(int,input().split()))
K2=K*2
sm=0
for a in A:
	L,H=-1,N
	while H-L>1:
		M=(H+L)//2
		if A[M]*a<K2:	L=M
		else:			H=M
	sm+=N-H
print(sm)