# A082570 (b-file synthesized from sequence entry)
1 1
2 4
3 13
4 53
5 266
6 1597
7 11180
8 89441
9 804970
10 8049701
11 88546712
12 1062560545
13 13813287086
14 193386019205
15 2900790288076
16 46412644609217
17 789014958356690
18 14202269250420421
19 269843115757988000
20 5396862315159760001
21 113334108618354960022
22 2493350389603809120485