# A271218 (b-file synthesized from sequence entry)
0 1
1 0
2 1
3 3
4 12
5 39
6 167
7 660
8 3083
9 13961
10 70728
11 355457
12 1936449
13 10587960
14 61539129
15 361182139
16 2224641540
17 13880534119
18 90090083047
19 593246514588
20 4038095508691
21 27905008440273
22 198401618299920
23 1432253086621377
24 10600146578310209
25 79639887325700592
26 611739960145556273