# A201470 (b-file synthesized from sequence entry)
0 1
1 2
2 12
3 126
4 1928
5 39050
6 987852
7 30028670
8 1067161104
9 43439950098
10 1993658601620
11 101873148358982
12 5736946141694616
13 353052289411248986
14 23574446170669354716
15 1697657229173802582030
16 131156091046113794979872
17 10821153944570302041170978
18 949646768024669592457251108