# A162273 (b-file synthesized from sequence entry)
0 2
1 9
2 42
3 198
4 936
5 4428
6 20952
7 99144
8 469152
9 2220048
10 10505376
11 49711968
12 235239552
13 1113165504
14 5267555712
15 24926341248
16 117952713216
17 558158231808
18 2641233111552
19 12498449278464
20 59143297001472
21 279869086338048