# A138461 (b-file synthesized from sequence entry)
0 0
1 1
2 -2
3 4
4 -6
5 11
6 -14
7 29
8 -26
9 85
10 -12
11 320
12 312
13 1639
14 3190
15 10484
16 25822
17 75005
18 200488
19 564662
20 1555804
21 4363139
22 12184456
23 34267931
24 96435100
25 272390561
26 770734846
27 2186278294
28 6213111234