# A327587 (b-file synthesized from sequence entry)
1 1
2 1
3 7
4 29
5 121
6 649
7 5041
8 42909
9 364561
10 3515651
11 39916801
12 486821873
13 6227020801
14 86497214231
15 1307843292757
16 21004582611869
17 355687428096001
18 6390006277567483
19 121645100408832001
20 2435277595236694779
21 51091124681475552961
22 1123451899297248225431