# A291335 (b-file synthesized from sequence entry)
0 1
1 -1
2 4
3 -18
4 128
5 -1375
6 19224
7 -328937
8 6594560
9 -150804585
10 3866510000
11 -109763181693
12 3416538258432
13 -115680589167780
14 4232540747232224
15 -166402907912306250
16 6995675389431382016
17 -313160900844718102493
18 14871520058618111804352
19 -746718033885917073001959