# A360438 (b-file synthesized from sequence entry)
0 1
1 3
2 15
3 105
4 945
5 10395
6 135135
7 2297295
8 43648605
9 1003917915
10 25097947875
11 727840488375
12 22563055139625
13 834833040166125
14 34228154646811125
15 1471810649812878375
16 69175100541205283625
17 3389579926519058897625
18 179647736105510121574125
19 10599216430225097172873375
20 646552202243730927545275875