# A367920 (b-file synthesized from sequence entry)
0 1
1 2
2 8
3 36
4 196
5 1196
6 8116
7 60108
8 481140
9 4126540
10 37671540
11 364068172
12 3707910772
13 39645022540
14 443540780660
15 5177560304972
16 62903920321140
17 793654042136908
18 10378403752717940
19 140413475790402892
20 1962339063781284468
21 28287778534523140428
22 420059992540347885172