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A122578 as a simple table

na(n)
01
12
21
3-1
4-4
5-1
6-1
74
829
91
10-20
11-29
12-299
1320
14559
15299
163926
17-559
18-13429
19-3926
20-61165
2113429
22343174
2361165
241063621
25-343174
26-9642971
27-1063621
28-19074796
299642971
30298720955
3119074796
32292597721
33-298720955
34-10150389236
35-292597721
36-90530999
3710150389236
38375654932731

[1,2,1,-1,-4,-1,-1,4,29,1,-20,-29,-299,20,559,299,
 3926,-559,-13429,-3926,-61165,13429,343174,61165,
 1063621,-343174,-9642971,-1063621,-19074796,
 9642971,298720955,19074796,292597721,-298720955,
 -10150389236,-292597721,-90530999,10150389236,
 375654932731]