# A135816 (b-file synthesized from sequence entry)
0 1
1 -1
2 1
3 -2
4 2
5 9
6 231
7 -208
8 -903776
9 -143213213
10 118835487821
11 388585756132242
12 -521157743571990450
13 -72978076847525420725075
14 -1904341683955074815027626877
15 1483881447421749524769255709488292
16 1360468742213189927760243663613128043340