# A227506 (b-file synthesized from sequence entry)
1 1
2 1
3 7
4 17
5 121
6 353
7 2591
8 8257
9 61921
10 207905
11 1582791
12 5501073
13 42344121
14 150827073
15 1170747519
16 4247388417
17 33186295681
18 122125206977
19 959260792775
20 3570473750929
21 28167068630713
22 105820555054241
23 837838806587167
24 3172136074486337