# A035482 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 6
4 96
5 720
6 328320
7 31449600
8 440952422400
9 444733651353600
10 471835793808949248000
11 10070314878246926155776000
12 1058410183156945383046388908032000
13 614972203951464612786852376432607232000