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A247564 as a simple table

na(n)
02
11
23
31
41
5-1
6-9
7-7
8-31
9-17
10-57
11-23
12-47
13-1
1487
1589
16449
17271
18999
19457
201201
21287
22-393
23-967
24-5983
25-4049
26-16377
27-8279
28-25199
29-8641
30-10089
317193
3270529
3356143
34251943
35139657
36473713
37194399
38413367
3924569
40-654751
41-703889
42-3617721

[2,1,3,1,1,-1,-9,-7,-31,-17,-57,-23,-47,-1,87,89,
 449,271,999,457,1201,287,-393,-967,-5983,-4049,
 -16377,-8279,-25199,-8641,-10089,7193,70529,56143,
 251943,139657,473713,194399,413367,24569,-654751,
 -703889,-3617721]