# A034725 (b-file synthesized from sequence entry)
1 1
2 18
3 96
4 175
5 1944
6 11664
7 145152
8 2322432
9 1741824
10 17635968
11 384072192
12 528482304
13 8323596288
14 580717154304
15 142216445952
16 1279948013568
17 5973090729984
18 56358560858112
19 222995387252736