# A352654 (b-file synthesized from sequence entry)
0 0
1 0
2 2
3 18
4 162
5 1500
6 14240
7 137886
8 1356194
9 13507416
10 135916002
11 1379301990
12 14097919968
13 144977296932
14 1498750896708
15 15564971674518
16 162298598439330
17 1698353774374704
18 17828728267167326
19 187693442844729174
20 1981038544180652162
21 20957881615473229620