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A066066 as a simple table

na(n)
1-1
21
33
45
57
611
79
815
915
1013
1117
1215
1319
1421
1519
1625
1721
1829
1929
2031
2135
2235
2333
2445
2535
2637
2745
2849
2953
3055
3139
3249
3343
3459
3551
3657
3759
3857
3963
4063
4163
4271
4361
4471
4569
4681
4769
4857
4967
5083
5191
5291
5395
5491
5587
5687
5781
5899
5993
6097
61107
6297
6387
6497
65107
66109
6795
6895
6993
70111
71115
72109
73105
74111
75105
76115
77109
78117
79127
80123
81115

[-1,1,3,5,7,11,9,15,15,13,17,15,19,21,19,25,21,29,
 29,31,35,35,33,45,35,37,45,49,53,55,39,49,43,59,
 51,57,59,57,63,63,63,71,61,71,69,81,69,57,67,83,
 91,91,95,91,87,87,81,99,93,97,107,97,87,97,107,
 109,95,95,93,111,115,109,105,111,105,115,109,117,
 127,123,115]