题号:NC17339
时间限制:C/C++/Rust/Pascal 1秒,其他语言2秒
空间限制:C/C++/Rust/Pascal 128 M,其他语言256 M
64bit IO Format: %lld
题目描述
Chiaki is interested in an infinite sequence a
1, a
2, a
3, ..., which defined as follows:
%5E%7B%5Cfrac%7Bn(n%2B1)%7D%7B2%7D%7D%20%26%20n%20%5Cge%202%5Cend%7Bcases%7D)
Chiaki would like to know the sum of the first n terms of the sequence, i.e.

. As this number may be very large, Chiaki is only interested in its remainder modulo (10
9 + 7).
输入描述:
There are multiple test cases. The first line of input contains an integer T (1 ≤ T ≤ 105), indicating the number of test cases. For each test case:
The first line contains an integer n (1 ≤ n ≤ 1018).
输出描述:
For each test case, output an integer denoting the answer.