# A180488 (b-file synthesized from sequence entry)
1 0
2 1
3 3
4 9
5 23
6 60
7 152
8 388
9 984
10 2501
11 6347
12 16117
13 40911
14 103864
15 263664
16 669352
17 1699216
18 4313673
19 10950739
20 27799745
21 70572839
22 179157364
23 454811656
24 1154592108
25 2931065640
26 7440849549
27 18889457819
28 47953075565