# A304911 (b-file synthesized from sequence entry)
0 1
1 0
2 1
3 4
4 32
5 351
6 5057
7 90756
8 1956971
9 49366904
10 1427680932
11 46590895869
12 1694163054597
13 67938488277050
14 2978980898086377
15 141801848209013050
16 7282651452378019772
17 401410357608479625207
18 23635996827115264290005