# A123742 (b-file synthesized from sequence entry)
1 1
2 -1
3 -2
4 48
5 30240
6 -1596672000
7 -18172937502720000
8 122457316443772566896640000
9 1284319496829094129116119090331648000000
10 -55603466527142141932748234118927499493985767915520000000