# A327243 (b-file synthesized from sequence entry)
1 1
2 1
3 7
4 35
5 121
6 479
7 5041
8 62159
9 423361
10 1844639
11 39916801
12 779042879
13 6227020801
14 43606442879
15 1536517382401
16 32256486662399
17 355687428096001
18 4259374594675199
19 121645100408832001
20 3568256949101644799
21 59616236292028416001
22 562000392047391897599