# A289717 (b-file synthesized from sequence entry)
0 1
1 2
2 9
3 64
4 549
5 4566
6 34711
7 243944
8 1622025
9 10402858
10 65219931
11 403119036
12 2469129229
13 15032191422
14 91123985023
15 550590488656
16 3318118088721
17 19953003487314
18 119759533521571
19 717624299625188
20 4293868352394261
21 25658433286034662
22 153142720988745159
23 913049836619756664