# A009772 (b-file synthesized from sequence entry)
0 0
1 1
2 -1
3 1
4 2
5 -29
6 194
7 -1049
8 4472
9 -6299
10 -171736
11 2993101
12 -34111408
13 302131831
14 -1763868016
15 -4643279549
16 370023946112
17 -7698953963639
18 115221639807104
19 -1282442213912999
20 6786946897932032
21 150369505621009291