# A046697 (b-file synthesized from sequence entry)
1 1
2 1
3 3
4 9
5 35
6 137
7 574
8 2431
9 10534
10 46123
11 204343
12 912967
13 4111375
14 18637303
15 84988775
16 389589095
17 1794280695
18 8298536715
19 38527147681
20 179487103411
21 838820394913
22 3931498654243
23 18475619837816
24 87036536948489
25 410947150379120
26 1944378509186237