# A346579 (b-file synthesized from sequence entry)
1 1
2 4
3 30
4 240
5 2125
6 19776
7 192129
8 1922496
9 19692504
10 205444500
11 2175519379
12 23322637440
13 252631900235
14 2760767859780
15 30400169155500
16 336977763170048
17 3757141504436392
18 42107201575798248
19 474084628585822412
20 5359833703935374000
21 60823006052351537106
22 692556314455384443196