# A111979 (b-file synthesized from sequence entry)
0 0
1 1
2 0
3 16
4 0
5 1536
6 0
7 -319488
8 0
9 36007575552
10 0
11 -53682434054553600
12 0
13 1790644857560674043166720
14 0
15 -1280831660558056667387645027942400
16 0
17 18961467116136182692294341450867551502336000
18 0