# A108367 (b-file synthesized from sequence entry)
0 1
1 -2
2 5
3 -29
4 265
5 -3191
6 47321
7 -832040
8 16908641
9 -389806471
10 10049731549
11 -286482047279
12 8946795882025
13 -303762892305614
14 11140078609864049
15 -438857301101610929
16 18482410314337295233
17 -828657053219851847135
18 39406519321199703822581
19 -1981132660316876165976260