# A002923 (b-file synthesized from sequence entry)
1 4
2 16
3 64
4 736
5 11584
6 43072
7 -607232
8 50435584
9 1204185088
10 -38340475904
11 -563767881728
12 73927460466688
13 311178505633792
14 -151984023599341568