# A177179 (b-file synthesized from sequence entry)
0 1
1 9
2 19
3 121
4 587
5 3717
6 22603
7 149065
8 988291
9 6762757
10 46812915
11 329336265
12 2340489211
13 16803807621
14 121604988955
15 886446236169
16 6501729726195
17 47952147336325
18 355387114288451
19 2645435985621257
20 19769671436457963