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A352779 as a simple table

na(n)
01
1-3
29
3-27
481
5-243
6729
7-2187
86561
9-19683
1059049
11-177147
12531441
13-1594323
144782969
15-14348907
1643046721
17-129140163
18387420489
19-1162261467
203486784401
21-10460353203
2231381059609
23-94143178827
24282429536481
25-847288609443
262541865828329
27-7625597484987

[1,-3,9,-27,81,-243,729,-2187,6561,-19683,59049,
 -177147,531441,-1594323,4782969,-14348907,
 43046721,-129140163,387420489,-1162261467,
 3486784401,-10460353203,31381059609,-94143178827,
 282429536481,-847288609443,2541865828329,
 -7625597484987]