# A162806 (b-file synthesized from sequence entry)
0 1
1 20
2 380
3 7030
4 129960
5 2400840
6 44352270
7 819332820
8 15135787980
9 279607936230
10 5165281123560
11 95419783331640
12 1762718203098270
13 32563220683609620
14 601550117011031580
15 11112615265773737430