# A238693 (b-file synthesized from sequence entry)
3 0
4 1
5 93
6 571
7 16143
8 79333
9 1755225
10 160251339
11 705725473
12 57691858003
13 1057609507815
14 4500326662525
15 80662044522801
16 5995948088798691
17 437230824840308493
18 1820340203482736875
19 130228506669621162901
20 2230237339841166071433
21 9214275012380069727751