# A257366 (b-file synthesized from sequence entry)
1 1
2 3
3 7
4 43
5 57
6 307
7 1068
8 2943
9 12943
10 45807
11 110443
12 670807
13 2733307
14 25670807
15 113561432
16 123327057
17 657922943
18 17213170807
19 7200891693
20 148802454193