# A000386 (b-file synthesized from sequence entry)
0 0
1 0
2 0
3 1
4 6
5 20
6 134
7 915
8 7324
9 65784
10 657180
11 7223637
12 86637650
13 1125842556
14 15757002706
15 236298742375
16 3780061394232
17 64251145312880
18 1156374220457784
19 21968796934412649
20 439337048505773790
21 9225384943965382564
22 202945418255342821470