# A133646 (b-file synthesized from sequence entry)
0 1
1 5
2 50
3 400
4 3500
5 29500
6 252500
7 2147500
8 18312500
9 155987500
10 1329312500
11 11326187500
12 96510312500
13 822337187500
14 7006995312500
15 59705092187500
16 508735320312500
17 4334829367187500
18 36936206445312500
19 314725913242187500