# A183608 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 7
4 29
5 133
6 658
7 3471
8 19400
9 114417
10 709815
11 4619048
12 31446579
13 223419752
14 1652599036
15 12698380493
16 101151995810
17 833740791381
18 7098646227614
19 62335051895044
20 563749889969108
21 5244173616702347
22 50117689766439784