# A036363 (b-file synthesized from sequence entry)
3 1
4 30
5 2940
6 612360
7 221371920
8 123506903520
9 98513415000000
10 106466143825641600
11 149822417112092524800
12 266259578976734741798400
13 583256031964344606759091200
14 1544112027465820312500000000000
15 4860420955731492909364541975040000