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A360987 as a simple table

na(n)
01
11
2-3
3-23
4233
53521
6-62171
7-1416407
835880977
91095318721
10-36224195059
11-1387587617239
1256675849155705
132612993427672577
14-127090039302776395
15-6852033608852338199
16386750643197222855969
1723875394847093826450049

[1,1,-3,-23,233,3521,-62171,-1416407,35880977,
 1095318721,-36224195059,-1387587617239,
 56675849155705,2612993427672577,
 -127090039302776395,-6852033608852338199,
 386750643197222855969,23875394847093826450049]