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A274717 as a simple table

na(n)
11
21
31
41
51
61
77
81
9-21
101
1171
121
135
147
151095
161
17-15885
18-21
1918443
201
21-55841
2271
23324945
241
25-2649857
265
276109987
287
29-18206579
301095
3192290439
321
33-3700779069
34-15885
355957604211
36-21
37-29227819205
3818443
3988113645133
401
41-917331711003
42-55841
432134630503193
4471
45-9943308217037
46324945
4729285764343377
481
49-616425445539209
50-2649857
511440419971225759
525
53-7198783835108021
546109987
5519846350459729237

[1,1,1,1,1,1,7,1,-21,1,71,1,5,7,1095,1,-15885,-21,
 18443,1,-55841,71,324945,1,-2649857,5,6109987,7,
 -18206579,1095,92290439,1,-3700779069,-15885,
 5957604211,-21,-29227819205,18443,88113645133,1,
 -917331711003,-55841,2134630503193,71,
 -9943308217037,324945,29285764343377,1,
 -616425445539209,-2649857,1440419971225759,5,
 -7198783835108021,6109987,19846350459729237]