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A257587 as a simple table

na(n)
00
11
24
39
416
525
636
749
864
981
101
110
12-3
13-8
14-15
15-24
16-35
17-48
18-63
19-80
204
213
220
23-5
24-12
25-21
26-32
27-45
28-60
29-77
309
318
325
330
34-7
35-16
36-27
37-40
38-55
39-72
4016
4115
4212
437
440
45-9
46-20
47-33
48-48
49-65
5025
5124
5221
5316
549
550
56-11
57-24
58-39
59-56
6036
6135
6232

[0,1,4,9,16,25,36,49,64,81,1,0,-3,-8,-15,-24,-35,
 -48,-63,-80,4,3,0,-5,-12,-21,-32,-45,-60,-77,9,8,
 5,0,-7,-16,-27,-40,-55,-72,16,15,12,7,0,-9,-20,
 -33,-48,-65,25,24,21,16,9,0,-11,-24,-39,-56,36,35,
 32]