# A183067 (b-file synthesized from sequence entry)
0 1
1 2
2 28
3 248
4 3976
5 52112
6 850144
7 13032896
8 217878616
9 3594283952
10 61577419168
11 1056910842176
12 18485891235904
13 325146542386304
14 5781811796793088
15 103413141115923968
16 1863085674077321176
17 33737014083314312624