# A245155 (b-file synthesized from sequence entry)
0 1
1 4
2 16
3 100
4 832
5 8644
6 107776
7 1567780
8 26063872
9 487466884
10 10129985536
11 231560895460
12 5774444019712
13 155997355725124
14 4538464905527296
15 141469868440031140
16 4703786933664612352
17 166172927821116399364
18 6215792183431115309056
19 245422172388559255422820