# A013006 (b-file synthesized from sequence entry)
0 1
1 4
2 16
3 544
4 11008
5 1060224
6 38065152
7 9708670976
8 276991311872
9 283899182678016
10 -9456062364418048
11 21467065808907534336
12 -3522630891818080796672
13 3483761539375407422242816