# A152335 (b-file synthesized from sequence entry)
1 1
2 2
3 6
4 24
5 120
6 640
7 4164
8 28224
9 237168
10 2133992
11 21136148
12 226558932
13 2656690332
14 33144866692
15 444798029884
16 6309964631348