# A230555 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 4
4 10
5 25
6 66
7 173
8 460
9 1218
10 3240
11 8602
12 22878
13 60794
14 161668
15 429752
16 1142758
17 3038173
18 8078606
19 21479469
20 57113888