# A150593 (b-file synthesized from sequence entry)
0 1
1 2
2 7
3 27
4 105
5 434
6 1823
7 7806
8 33899
9 148480
10 656977
11 2924911
12 13103957
13 58999404
14 266766771
15 1210995905
16 5514878065
17 25192059976
18 115378537393
19 529692971635
20 2437090152723
21 11234658689688
22 51884773874329
23 240009946904894
24 1111939544334635
25 5158739770169646
26 23964572305570459
27 111461502853365199