# A003513 (b-file synthesized from sequence entry)
2 1
3 2
4 6
5 27
6 192
7 2280
8 47097
9 1735803
10 115867758
11 14137353466
12 3172486137982
13 1315460211433262
14 1011773137731861712
15 1448486351628212391462
16 3872217739919424676743213