# A218211 (b-file synthesized from sequence entry)
1 0
2 0
3 4
4 10
5 15
6 49
7 147
8 407
9 1084
10 3010
11 8756
12 25145
13 73424
14 215375
15 631828
16 1870092
17 5562131
18 16584139
19 49630873
20 148917071
21 448088250