# A370936 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 8
4 48
5 384
6 3872
7 47088
8 671360
9 10985088
10 202927872
11 4178030592
12 94874787840
13 2355758714880
14 63498696376320
15 1846607063998464
16 57630620308930560
17 1921296165774950400
18 68145277700464312320
19 2562234152415762972672
20 101801592691389968154624