# A337058 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 7
4 33
5 191
6 1323
7 10711
8 99151
9 1032385
10 11943003
11 151979213
12 2109829857
13 31730171539
14 513903517585
15 8917723105003
16 165065061436755
17 3246274767649637
18 67598797715175999
19 1485845872704318265
20 34378343609138619685
21 835190283258080561671