# A081065 (b-file synthesized from sequence entry)
1 2
2 24
3 330
4 4592
5 63954
6 890760
7 12406682
8 172802784
9 2406832290
10 33522849272
11 466913057514
12 6503259955920
13 90578726325362
14 1261598908599144
15 17571805994062650
16 244743685008277952
17 3408839784121828674
18 47479013292697323480
19 661297346313640700042