# A047095 (b-file synthesized from sequence entry)
0 1
1 2
2 7
3 22
4 79
5 278
6 1021
7 3752
8 14023
9 52640
10 199248
11 757360
12 2892977
13 11088266
14 42640759
15 164413606
16 635490703
17 2461411460
18 9551605730
19 37126976390
20 144528973888
21 563386487780
22 2198826762318
23 8591331622208