# A012024 (b-file synthesized from sequence entry)
1 1
2 -2
3 16
4 -104
5 -20096
6 4427776
7 -954111872
8 243390205696
9 -75389245067264
10 28248828019830784
11 -12669814369258471424
12 6721694045416881553408
13 -4170436153219300846567424
14 2994608522937575414450814976