# A075792 (b-file synthesized from sequence entry)
0 1
1 1
2 1
3 2
4 8
5 44
6 302
7 2512
8 24558
9 275676
10 3493862
11 49339784
12 768182846
13 13071470788
14 241332513606
15 4804601266896
16 102599581877918
17 2339270285673068
18 56716397892998246
19 1457071974028941400
20 39538338850995279294
21 1130018112921128323668
22 33928819073838398622662