# A327994 (b-file synthesized from sequence entry)
0 1
1 4
2 22
3 157
4 1342
5 12694
6 126601
7 1301353
8 13647622
9 145280776
10 1564974682
11 17022150688
12 186647326849
13 2060538384454
14 22880172406939
15 255336518921572
16 2861956399934038
17 32201882791307904
18 363561893114484868
19 4117138703073839926
20 46751784944876067562