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A252840 as a simple table

na(n)
01
11
21
31
40
5-3
61
7-1
8-3
95
101
11-2
12-2
138
14-7
151
16-3
170
1810
19-15
209
211
22-4
233
2410
25-25
2624
27-11
281
29-5
307
317
32-35
3349
34-35
3513
361
37-6
3812
390
40-42
4184
42-84
4348
44-15
451
46-7
4718
48-12
49-42
50126
51-168
52132
53-63
5417

[1,1,1,1,0,-3,1,-1,-3,5,1,-2,-2,8,-7,1,-3,0,10,
 -15,9,1,-4,3,10,-25,24,-11,1,-5,7,7,-35,49,-35,13,
 1,-6,12,0,-42,84,-84,48,-15,1,-7,18,-12,-42,126,
 -168,132,-63,17]