# A337025 (b-file synthesized from sequence entry)
0 1
1 16
2 4096
3 2985984
4 4294967296
5 10240000000000
6 36520347436056576
7 182059119829942534144
8 1208925819614629174706176
9 10314424798490535546171949056
10 109951162777600000000000000000000
11 1432052311740255546466984939315265536