# A000162 (b-file synthesized from sequence entry)
1 1
2 1
3 2
4 8
5 29
6 166
7 1023
8 6922
9 48311
10 346543
11 2522522
12 18598427
13 138462649
14 1039496297
15 7859514470
16 59795121480
17 457409613979
18 3516009200564
19 27144143923583
20 210375361379518
21 1636229771639924
22 12766882202755783