# A330537 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 16
4 104
5 704
6 6368
7 58752
8 662272
9 7802880
10 106639872
11 1511241216
12 24062834688
13 398765162496
14 7252942872576
15 137324083666944
16 2804224273514496
17 59594575901687808
18 1352293406316822528
19 31831016595468189696