# A107052 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 4
4 256
5 800000
6 9600000
7 7906012800000
8 129532113715200000
9 206516028134758809600000
10 2581450351684485120000000000
11 736517912438453927556570808320000000000