# A011814 (b-file synthesized from sequence entry)
0 0
1 0
2 0
3 0
4 0
5 0
6 1
7 121
8 9274
9 588336
10 34169279
11 1910015056
12 105715598909
13 5894822718103
14 334864912935350
15 19523280973963941
16 1174121560958610835
17 73092687563740003227
18 4721840282194948355236