# A276487 (b-file synthesized from sequence entry)
1 1
2 4
3 216
4 20736
5 777600000
6 46656000000
7 768464444160000000
8 247875891108249600000000
9 4098310578334288576512000000000
10 413109706296096288512409600000000
11 7425496288284402957501110551810198732800000000000