# A005398 (b-file synthesized from sequence entry)
3 8
4 33
5 168
6 970
7 6168
8 42069
9 301376
10 2241420
11 17173224
12 134806948
13 1079802216
14 8798329080
15 72748583832
16 609220407150
17 5158999447488