# A266933 (b-file synthesized from sequence entry)
1 2
2 6
3 19
4 82
5 429
6 2577
7 15850
8 96503
9 555060
10 2977370
11 14782970
12 68041108
13 291292442
14 1165800099
15 4383605127
16 15564591521
17 52423001756
18 168200350788
19 516045791503
20 1519124991181