# A355408 (b-file synthesized from sequence entry)
0 1
1 2
2 16
3 170
4 2416
5 42962
6 916696
7 22819610
8 649207456
9 20778364322
10 738918769576
11 28905116527850
12 1233506128752496
13 57025618592932082
14 2839117599033828856
15 151446758367400488890
16 8617182795217834505536
17 520954229292164353554242