# A099265 (b-file synthesized from sequence entry)
1 1
2 3
3 8
4 23
5 75
6 277
7 1132
8 4977
9 22979
10 109451
11 531456
12 2610931
13 12917683
14 64181625
15 319695980
16 1594859885
17 7963472187
18 39784944799
19 198827606704
20 993846943839
21 4968361974491
22 24839192686973
23 124188113975628