# A026388 (b-file synthesized from sequence entry)
1 1
2 5
3 24
4 114
5 541
6 2573
7 12275
8 58747
9 282003
10 1357407
11 6549906
12 31675020
13 153481299
14 745011075
15 3622111560
16 17635418730
17 85975792075
18 419644943495
19 2050493623760
20 10029194506990
21 49098707209695
22 240568930012575