# -*- coding:utf-8 -*-
import collections
import math

if __name__ == "__main__":
	n = input()
	A = map(int,raw_input().split())
	num = len(set(A))
	cnt = collections.Counter(A)
	temp = 10 **9 + 7
	if num < 3:
		print 0
	else:
		ans = n * (n-1) * (n-2) / 6.0
		loss = 0
		for element in cnt.most_common():
			if element[1] == 1:
				break
			loss += (element[1] * (element[1] - 1) / 2) * (n-element[1])
			if element[1] >= 3:
				loss += element[1] * (element[1]-1) * (element[1]-2) / 6.0

		print int((ans-loss) % temp)