# A372374 (b-file synthesized from sequence entry)
0 1
1 3
2 15
3 93
4 627
5 4368
6 30957
7 222015
8 1606803
9 11713260
10 85884660
11 632726988
12 4679850525
13 34729198260
14 258460942671
15 1928258130018
16 14416834880067
17 107993546227875
18 810319315565760
19 6089298408130707
20 45821042464807512
21 345217506895648767