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A302195 as a simple table

na(n)
01
1-3
212
3-64
4441
5-3771
638638
7-461742
86306009
9-96885451
101653938616
11-31057949748
12636230845297
13-14119481897379
14337448486204586
15-8640908986912786
16236015269236658833
17-6849355531826261427
18210466462952536609924

[1,-3,12,-64,441,-3771,38638,-461742,6306009,
 -96885451,1653938616,-31057949748,636230845297,
 -14119481897379,337448486204586,-8640908986912786,
 236015269236658833,-6849355531826261427,
 210466462952536609924]