# A084026 (b-file synthesized from sequence entry)
1 1
2 44
3 171
4 2772
5 50405
6 216612
7 1036301
8 21177112
9 100808001
10 1000900010
11 10011211001
12 210033330012
13 1000175710001
14 20001366310002
15 500000464000005
16 2110001551000112
17 10000027672000001
18 200000187781000002