# A013123 (b-file synthesized from sequence entry)
0 0
1 2
2 -1
3 8
4 -30
5 102
6 -735
7 6036
8 -43372
9 366666
10 -3909645
11 43735936
12 -509688234
13 6614683246
14 -93752033739
15 1403126034316
16 -22351107663000
17 380878785320338
18 -6864318972384345
19 130206659362724728