# A013266 (b-file synthesized from sequence entry)
0 0
1 0
2 -1
3 1
4 -6
5 23
6 -150
7 929
8 -8120
9 73387
10 -791280
11 9118019
12 -118205208
13 1645324757
14 -25017568576
15 407175866733
16 -7122304020000
17 132554586404695
18 -2623938745643136
19 54936833779465199