# A049033 (b-file synthesized from sequence entry)
0 1
1 56
2 4368
3 489280
4 75851776
5 15658639360
6 4165906530304
7 1390437378293760
8 569462999991975936
9 280969831084430721024
10 164441704270786486861824
11 112668650067303149573505024