# A155600 (b-file synthesized from sequence entry)
0 1
1 8
2 78
3 722
4 6546
5 59018
6 531378
7 4782842
8 43046466
9 387419978
10 3486783378
11 31381057562
12 282429532386
13 2541865820138
14 22876792438578
15 205891132061882
16 1853020188786306
17 16677181699535498
18 150094635296736978