# A064344 (b-file synthesized from sequence entry)
0 1
1 1
2 12
3 540
4 39744
5 3598992
6 363776832
7 39348690624
8 4456429954560
9 521760612125952
10 62642882007530496
11 7670452375558388736
12 954216689151845302272
13 120261048050627578368000