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A361068 as a simple table

na(n)
01
11
2-1
313
4-127
52101
6-41801
71030177
8-29820127
9995977801
10-37660751569
111590847310581
12-74242656468575
133793664894534269
14-210656932372422745
1512630986901470435401
16-813335155262348743231
1755977540398642247218449

[1,1,-1,13,-127,2101,-41801,1030177,-29820127,
 995977801,-37660751569,1590847310581,
 -74242656468575,3793664894534269,
 -210656932372422745,12630986901470435401,
 -813335155262348743231,55977540398642247218449]