# A275594 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 1
5 2
6 6
7 24
8 144
9 1464
10 26808
11 935184
12 67404816
13 10401844896
14 3508019017056
15 2732681228689152
16 5018025242941566336
17 21914759744001662937984
18 238559201308551667344338304
19 6565759935393013059564090526464