# A177184 (b-file synthesized from sequence entry)
0 1
1 9
2 15
3 107
4 479
5 3103
6 18031
7 117727
8 755599
9 5064687
10 34093263
11 234114735
12 1620229839
13 11340760367
14 79951746767
15 567945479727
16 4058390653647
17 29163273207087
18 210568996777167
19 1527068200329007
20 11117641676731087