# A035481 (b-file synthesized from sequence entry)
0 1
1 1
2 1
3 1
4 4
5 6
6 456
7 6240
8 10936320
9 1225566720
10 130025295912960
11 252282619805368320
12 2209617218725251404267520
13 98758655816833727741338583040