# A123785 (b-file synthesized from sequence entry)
1 1
2 3
3 5
4 16
5 36
6 124
7 287
8 1043
9 2573
10 9448
11 24161
12 89827
13 235902
14 886047
15 2372494
16 8968829
17 24410414
18 92783928
19 255723571
20 976331352