# A124543 (b-file synthesized from sequence entry)
0 1
1 3
2 15
3 73
4 369
5 1959
6 10912
7 63543
8 385341
9 2424988
10 15788469
11 106075089
12 733801709
13 5217101283
14 38060759175
15 284533309380
16 2177136417042
17 17032924895739
18 136129119703837
19 1110507731328900
20 9240322072954209