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A262940 as a simple table

na(n)
01
11
21
3-3
41
53
61
721
81
9-21
101
11255
121
13-255
141
15478677
161
17-478677
181
197152407
201
21-7152407
221
23-1291535081
241
251291535081
261
27-21021866227
281
2921021866227
301
318367123104756933
321
33-8367123104756933
341
35125486744208053623
361
37-125486744208053623
381
39-22639240870533272321
401
4122639240870533272321
421
43-368298497943774746859
441
45368298497943774746859
461
47-1120119534438107659394201
481
491120119534438107659394201

[1,1,1,-3,1,3,1,21,1,-21,1,255,1,-255,1,478677,1,
 -478677,1,7152407,1,-7152407,1,-1291535081,1,
 1291535081,1,-21021866227,1,21021866227,1,
 8367123104756933,1,-8367123104756933,1,
 125486744208053623,1,-125486744208053623,1,
 -22639240870533272321,1,22639240870533272321,1,
 -368298497943774746859,1,368298497943774746859,1,
 -1120119534438107659394201,1,
 1120119534438107659394201]