# A367757 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 13
4 73
5 501
6 3337
7 27637
8 254409
9 2557369
10 27603631
11 313768731
12 3905502745
13 51573777841
14 718307494269
15 10507900625251
16 161239887204721
17 2608009648536417
18 43989477103304155
19 772109936171046001
20 14085074476090366761
21 266890182641557777093