# A234239 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 7
4 34
5 209
6 1558
7 13663
8 137786
9 1570681
10 19970182
11 280168967
12 4299033994
13 71619894529
14 1287342696278
15 24832567401103
16 511673425673626
17 11215927371237161
18 260604889591097062
19 6397958871977787127
20 165486967875852965354
21 4498061784752926891249
22 128176486634710543231798