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A278710 as a simple table

na(n)
01
1-2
2-1
3-2
47
52
610
7-8
85
9-40
10-4
11-54
1252
13-30
14162
15-12
16292
17-142
18270
19-576
20168
21-1228
22305
23-1702
241435
25-1664
263839
27-1444
287303
29-2752
3010117
31-8420
3211065
33-20714
3411066
35-38702
3617057
37-57276
3840310
39-69898
4094138
41-77014
42181926
43-97480

[1,-2,-1,-2,7,2,10,-8,5,-40,-4,-54,52,-30,162,-12,
 292,-142,270,-576,168,-1228,305,-1702,1435,-1664,
 3839,-1444,7303,-2752,10117,-8420,11065,-20714,
 11066,-38702,17057,-57276,40310,-69898,94138,
 -77014,181926,-97480]