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A061084 as a simple table

na(n)
01
12
2-1
33
4-4
57
6-11
718
8-29
947
10-76
11123
12-199
13322
14-521
15843
16-1364
172207
18-3571
195778
20-9349
2115127
22-24476
2339603
24-64079
25103682
26-167761
27271443
28-439204
29710647
30-1149851
311860498
32-3010349
334870847
34-7881196
3512752043
36-20633239
3733385282
38-54018521

[1,2,-1,3,-4,7,-11,18,-29,47,-76,123,-199,322,
 -521,843,-1364,2207,-3571,5778,-9349,15127,-24476,
 39603,-64079,103682,-167761,271443,-439204,710647,
 -1149851,1860498,-3010349,4870847,-7881196,
 12752043,-20633239,33385282,-54018521]