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A306630 as a simple table

na(n)
01
1-1
2-3
3-201
4-328975
5-24866803361
6-139308071489312831
7-82606210548424879390169217
8-6984963414431972003347406551951687935
9-109110687852301656115645192848607902864427297823233

[1,-1,-3,-201,-328975,-24866803361,
 -139308071489312831,-82606210548424879390169217,
 -6984963414431972003347406551951687935,
 -1091106878523016561156451928486079028644272978232\
 33]