# A147176 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 5
9 25
10 49
11 81
12 173
13 659
14 1949
15 6591
16 26979
17 151047
18 720521
19 4123761
20 21126009
21 143739573