# A307181 (b-file synthesized from sequence entry)
1 0
2 6
3 12
4 40
5 90
6 216
7 462
8 976
9 1980
10 3940
11 7678
12 14736
13 27898
14 52220
15 96780
16 177824
17 324258
18 587304
19 1057350
20 1893320
21 3373692
22 5984924
23 10574342
24 18613920
25 32654450
26 57106036
27 99576972
28 173166616
29 300385770
30 519849720