# A033470 (b-file synthesized from sequence entry)
0 1
1 -1
2 13
3 -121
4 1093
5 -49205
6 61203943
7 -5580127
8 25949996501
9 -2832495743227
10 101471818419863
11 -4469253897850313
12 11126033443528968583
13 -3623473373642099263
14 90551915146257709805297
15 -295654219044074800178128205