# A097444 (b-file synthesized from sequence entry)
2 7
3 13
4 41
5 227
6 2339
7 30059
8 510551
9 9699727
10 223092917
11 6469693319
12 200560490213
13 7420738134911
14 304250263527317
15 13082761331670097
16 614889782588491519
17 32589158477190044803
18 1922760350154212639159