# A347666 (b-file synthesized from sequence entry)
0 1
1 2
2 8
3 40
4 239
5 1648
6 12778
7 109476
8 1023520
9 10341878
10 112067820
11 1294254184
12 15847382977
13 204827368606
14 2784056034014
15 39665514607872
16 590684848605779
17 9170941154737032
18 148120725648168260
19 2483657480026985432
20 43157660169344697996
21 775898068395820783674