# A337314 (b-file synthesized from sequence entry)
1 0
2 0
3 0
4 4536
5 45360
6 294840
7 1587600
8 7715736
9 35244720
10 154700280
11 661122000
12 2773768536
13 11487556080
14 47136955320
15 192126589200
16 779279814936
17 3149513947440
18 12695388483960
19 51073849285200
20 205172877726936
21 823325141746800
22 3301203837670200
23 13228529919066000