# A222050 (b-file synthesized from sequence entry)
0 1
1 1
2 5
3 30
4 209
5 1573
6 12478
7 102714
8 869193
9 7514445
10 66083025
11 589294500
12 5316256278
13 48431659786
14 444928748618
15 4117185679310
16 38340948482745
17 359047299072777
18 3379057486089649
19 31942315551724102
20 303158909307122141
21 2887629443604011421
22 27595392738011189028