# A368017 (b-file synthesized from sequence entry)
0 1
1 -2
2 -4
3 14
4 144
5 286
6 -5080
7 -61058
8 -186144
9 4016958
10 73395928
11 468915102
12 -4728823088
13 -167453193314
14 -2051810224568
15 -406640603074
16 533831885402048
17 11987797433266302
18 110763307665075640
19 -1459040819952150178
20 -80503810962755821904