# A027488 (b-file synthesized from sequence entry)
3 1
4 30
5 1035
6 45675
7 2582209
8 183962268
9 16206744140
10 1734708878100
11 222083697846516
12 33544055541553128
13 5906505211210055088
14 1199823052824417425040
15 278598452852079082857744
16 73346715446248518553100160
17 21736011315987768499695624960