# A058822 (b-file synthesized from sequence entry)
0 1
1 7
2 28
3 231
4 1813
5 13447
6 98105
7 705895
8 5044501
9 35869911
10 254229409
11 1797569767
12 12687856601
13 89436009607
14 629778626473
15 4431057410423
16 31155872769301
17 218946366105607
18 1537946178052697
19 10798953333511399
20 75802652996855281
21 531948441984119239
22 3732101910100912537