# A167874 (b-file synthesized from sequence entry)
1 3
2 15
3 69
4 409
5 2447
6 16337
7 117959
8 880623
9 6849011
10 54825357
11 448752095
12 3741170439
13 31669329743
14 271560643329
15 2354418484607
16 20608371394595
17 181897678706317
18 1617351777154871