# A277297 (b-file synthesized from sequence entry)
1 2
2 14
3 76
4 378
5 1808
6 8484
7 39446
8 182732
9 846248
10 3926338
11 18276832
12 85436832
13 401313288
14 1894847846
15 8994916236
16 42931067910
17 206002472336
18 993664391720
19 4817140123620
20 23464959242520
21 114820471485840
22 564248307992850
23 2783898831160512
24 13786409317705920
25 68509284536815640
26 341538385855855064
27 1707729163812908528