# A024236 (b-file synthesized from sequence entry)
0 0
1 1
2 -2
3 48
4 -1040
5 62720
6 -4314624
7 498003968
8 -70081316864
9 13529482592256
10 -3175495421788160
11 933402531586899968
12 -326784893253162369024
13 136568449424117316190208
14 -66517446960602151366164480