# A173226 (b-file synthesized from sequence entry)
0 1
1 2
2 7
3 68
4 1453
5 51974
6 2754739
7 202115720
8 19593627865
9 2424473303306
10 372795661540831
11 69721670054678732
12 15584255833611765637
13 4102656765126735657998
14 1256362298168756601126283
15 442800255547191861154809104
16 177962191835086481297819598769