# A337406 (b-file synthesized from sequence entry)
1 0
2 74
3 10704
4 345640
5 5062600
6 45246810
7 288005144
8 1430618784
9 5881281480
10 20827126650
11 65370603320
12 185725346664
13 485325996064
14 1181031257770
15 2702889008400
16 5863794289280
17 12137528310384
18 24099966466794