# A058866 (b-file synthesized from sequence entry)
1 1
2 2
3 6
4 21
5 83
6 356
7 1599
8 7434
9 35381
10 171508
11 843419
12 4197179
13 21094355
14 106915928
15 545859112
16 2804656069
17 14491370996
18 75248398034
19 392476363133
20 2055245992376
21 10801442696736
22 56953957110855
23 301207378815752