# A084018 (b-file synthesized from sequence entry)
1 1
2 11
3 37
4 1001
5 10001
6 33517
7 157573
8 2637514
9 11118889
10 100080001
11 1819008182
12 17500275001
13 76944363077
14 1428575357143
15 33333336666667
16 131875027500007
17 588235715882353
18 11111111538888889
19 52631583252631579