# A188577 (b-file synthesized from sequence entry)
1 0
2 1
3 2
4 8
5 18
6 39
7 89
8 195
9 415
10 865
11 1823
12 3787
13 7869
14 16230
15 33352
16 68422
17 140013
18 285991
19 583235
20 1187718