# A056096 (b-file synthesized from sequence entry)
3 1
4 4
5 17
6 80
7 403
8 2128
9 11628
10 65208
11 373175
12 2170740
13 12797265
14 76292736
15 459162452
16 2786017120
17 17024247304
18 104673837384
19 647113502847
20 4020062732140