# A056593 (b-file synthesized from sequence entry)
0 1
1 2
2 4
3 10
4 32
5 132
6 692
7 4620
8 39352
9 427572
10 5918992
11 104375880
12 2344751912
13 67092113592
14 2444702271152
15 113425536387240
16 6700361921561152
17 503909247633965712
18 48243317287320644752
19 5879293173259041034800