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A291527 as a simple table

na(n)
11
2-1
30
41
51
64
7-10
8-4
99
10-1
11-44
1275
13224
14-299
15-180
16225
171
18408
1992
20-7400
214758
2219592
23-15876
24-12600
2511025
26-1
27-3688
28-23387
29194160
30155702
31-1313312
32264586
332445840
34-1289925
35-1323000
36893025
371
3833212
39804210
40-3980044
41-20402105
4264915224
4374573980
44-279362392
45-18229761
46414859500
47-144802350
48-196465500
49108056025
50-1
51-298932
52-22347185
5333998224
541349961795
55-1942776004
56-12484642765
5721458573952
5832679754381
59-72263858940
60-19224079875
6192046754800
62-20560114575
63-39332393100
6418261468225
651
662690416
67581249144
682783246128
69-71371497796
70-59230867280
711313526021896
72-606679979408
73-7350770598874
747512502827344
7515289334428104
76-22529210886000
77-9997446759300
7825906255174800
79-3292683193800
80-10226422206000
814108830350625

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 225,1,408,92,-7400,4758,19592,-15876,-12600,11025,
 -1,-3688,-23387,194160,155702,-1313312,264586,
 2445840,-1289925,-1323000,893025,1,33212,804210,
 -3980044,-20402105,64915224,74573980,-279362392,
 -18229761,414859500,-144802350,-196465500,
 108056025,-1,-298932,-22347185,33998224,
 1349961795,-1942776004,-12484642765,21458573952,
 32679754381,-72263858940,-19224079875,92046754800,
 -20560114575,-39332393100,18261468225,1,2690416,
 581249144,2783246128,-71371497796,-59230867280,
 1313526021896,-606679979408,-7350770598874,
 7512502827344,15289334428104,-22529210886000,
 -9997446759300,25906255174800,-3292683193800,
 -10226422206000,4108830350625]