# A106227 (b-file synthesized from sequence entry)
0 1
1 1
2 -3
3 13
4 -65
5 351
6 -1989
7 11650
8 -69900
9 427167
10 -2648438
11 16612947
12 -105215448
13 671760933
14 -4318468133
15 27926126547
16 -181520036139
17 1185220461607
18 -7769787811032
19 51117085986564
20 -337373170566291
21 2233091754693676
22 -14819626688607761
23 98582852441111688