# A212373 (b-file synthesized from sequence entry)
1 141440
2 2286080
3 6680960
4 1119849500
5 2081125376
6 3991520000
7 4141021500
8 9644638208
9 23664804800
10 32662630400
11 37516855536
12 67994319888
13 577461690368
14 618169892864
15 627198842816
16 4132702579824
17 4949713492400
18 5025386326400
19 5579119296000
20 9013476012156