# A072111 (b-file synthesized from sequence entry)
1 1
2 5
3 19
4 61
5 203
6 669
7 2279
8 7797
9 27213
10 96111
11 343965
12 1240617
13 4513763
14 16546859
15 61027965
16 226454967
17 844181631
18 3161518957
19 11886015725
20 44847272299
21 169747439789
22 644345294711
23 2452231140853
24 9354606971985