# A027003 (b-file synthesized from sequence entry)
4 1
5 64
6 901
7 6821
8 36425
9 155793
10 573382
11 1899933
12 5844446
13 17056486
14 47974934
15 131553646
16 354615679
17 945220982
18 2501450971
19 6590435731
20 17316698039
21 45428211431
22 119066290172
23 311909267867
24 816853717452
25 2138914514428
26 5600243896572
27 14662288678348
28 38387242941837