# A356406 (b-file synthesized from sequence entry)
1 1
2 4
3 16
4 79
5 443
6 2968
7 22216
8 189698
9 1792402
10 18745036
11 213452996
12 2653142952
13 35448861576
14 509724975264
15 7824794618208
16 128006170541328
17 2217950478978576
18 40686737647774368
19 785852762719168992
20 15974195890305405696
21 340376906088298319616