# A150591 (b-file synthesized from sequence entry)
0 1
1 2
2 7
3 27
4 105
5 426
6 1787
7 7590
8 32633
9 142152
10 624659
11 2763357
12 12305393
13 55103828
14 247872791
15 1119588403
16 5075796897
17 23086174696
18 105306348827
19 481622980387
20 2207998493273
21 10144524748848
22 46701478420759
23 215390610021262
24 995075944131209
25 4604311511035654
26 21335578867637575
27 98999148480162529