# A157748 (b-file synthesized from sequence entry)
0 1
1 -2
2 5
3 -12
4 30
5 -73
6 180
7 -444
8 1095
9 -2699
10 6653
11 -16399
12 40421
13 -99632
14 245580
15 -605324
16 1492048
17 -3677712
18 9065100
19 -22344336
20 55075988
21 -135755408
22 334620068
23 -824796535
24 2033020102
25 -5011139791
26 12351831632
27 -30445717146