# A356836 (b-file synthesized from sequence entry)
0 1
1 12
2 102
3 812
4 6402
5 50412
6 396902
7 3124812
8 24601602
9 193688012
10 1524902502
11 12005532012
12 94519353602
13 744149296812
14 5858675020902
15 46125250870412
16 363143331942402
17 2859021404668812
18 22509027905408102
19 177213201838596012
20 1395196586803360002
21 10984359492588284012