# A146904 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 1
5 1
6 1
7 3
8 7
9 13
10 27
11 81
12 287
13 1153
14 4961
15 23911
16 134777
17 885445
18 6659249
19 57412261
20 568445509
21 6410206283
22 82425528579
23 1216468689493
24 20669872378163
25 403437418129203
26 9012600422728359
27 230172718811608655
28 6730737235950056465