# A009267 (b-file synthesized from sequence entry)
0 1
1 1
2 1
3 -4
4 -19
5 -8
6 397
7 1752
8 -7943
9 -117312
10 -64551
11 7882624
12 43466469
13 -537535360
14 -7570028763
15 27307332608
16 1224976528753
17 2518262718464
18 -203222727578703
19 -1691557864632320
20 33945910273599581
21 611413449329426432