# A153122 (b-file synthesized from sequence entry)
0 1
1 -2
2 6
3 -15
4 38
5 -95
6 237
7 -590
8 1468
9 -3651
10 9079
11 -22575
12 56131
13 -139563
14 347004
15 -862774
16 2145156
17 -5333599
18 13261165
19 -32971820
20 81979285
21 -203828691
22 506788203
23 -1260049698
24 3132916721
25 -7789507968
26 19367394583
27 -48154000782