# A181727 (b-file synthesized from sequence entry)
0 1
1 39916800
2 1456812592995513600
3 166369951631853645510591187200
4 31707078596527364069316526441204831526400
5 8089435115221815003427192379950659547969112311680000
6 2492107900477900258313589438717998843635090670139189341868499200