# A324443 (b-file synthesized from sequence entry)
0 1
1 3
2 972
3 437987088
4 1396064690700615936
5 100943980553724942717460016640000
6 408685260379151918936869901376463191556211834880000
7 193581283410907012468703321819613695893448022144552623141894180044800000000