# A224079 (b-file synthesized from sequence entry)
1 1
2 1
3 4
4 25
5 191
6 1981
7 24515
8 357393
9 6014944
10 114374701
11 2429126965
12 56973837097
13 1462548099325
14 40790689845725
15 1228180553509096
16 39706476998683809
17 1371869867621426343
18 50445615936195883981
19 1967026296214873286071
20 81070802180747506986681