# A150428 (b-file synthesized from sequence entry)
0 1
1 2
2 7
3 24
4 97
5 391
6 1672
7 7232
8 32095
9 143890
10 654576
11 3001579
12 13885346
13 64649472
14 302799239
15 1425079734
16 6737118346
17 31968585995
18 152210064193
19 726892427717
20 3480598873598
21 16706218528946
22 80362739968924
23 387329882769961
24 1870188929001891
25 9044941975505991
26 43810266592179082
27 212493330136638586