# A032333 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 4
5 20
6 160
7 1240
8 13560
9 149900
10 2011940
11 28865620
12 475287860
13 8289874060
14 161736893240
15 3350194920540
16 75447930411100
17 1807230749404340
18 46377810638160560
19 1258317734014917940