# A119600 (b-file synthesized from sequence entry)
0 4
1 4
2 64
3 6400
4 5017600
5 33738342400
6 2008645953126400
7 1070407428421058560000
8 5124408580006984170864640000
9 220656234047362257307900743516160000
10 85495432669493277396354169745064287272960000
11 298114237913837782686540845369489025952802406400000000
12 9355246290649672947599943358541996936410690283965618585600000000