# A052138 (b-file synthesized from sequence entry)
1 1
2 -1
3 1
4 -5
5 103
6 -49
7 2971
8 -34409
9 10787
10 -567923
11 4857119
12 -30312479
13 7045653829
14 -77510407993
15 262952596463
16 -58196505296117
17 74362625639717
18 172749391066639
19 -24672728226124829
20 -12265872397466432881
21 1772477431815925044131