# A104448 (b-file synthesized from sequence entry)
0 1
1 3
2 6
3 13
4 33
5 101
6 372
7 1624
8 8263
9 48285
10 320031
11 2380114
12 19675986
13 179314868
14 1788473424
15 19398149629
16 227510745445
17 2871040422932
18 38810001746171
19 559745948482030
20 8582882169611759
21 139467832061599433