eolymp
Competitions

DSCS 2013 Triangular and hexagonal grid. Part 2

Honeycomb Walk

prb4632 A bee larva living in a hexagonal cell of a large honeycomb decides to creep for a walk. In each "step" the larva may move into any of the six adjacent cells and after n steps, it is to end up in its original cell.

Your program has to compute, for a given n, the number of different such larva walks.

Input

The first line contains an integer giving the number of test cases to follow. Each case consists of one line containing an integer n (1n14).

Output

For each test case, output one line containing the number of walks. Under the assumption 1n14, the answer will be less than 231.

Time limit 1 second
Memory limit 64 MiB
Input example #1
2
2
4
Output example #1
6
90