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A345885 as a simple table

na(n)
11
2-3
315
4-82
5486
6-3090
720497
8-140010
9979131
10-6976603
1150461716
12-369533691
132734423934
14-20414010219
15153571115619
16-1163003999342
178859172575069
18-67835214598017
19521824159637718
20-4030828937892966
2131252886542570119
22-243142210911325273
231897466281615297698

[1,-3,15,-82,486,-3090,20497,-140010,979131,
 -6976603,50461716,-369533691,2734423934,
 -20414010219,153571115619,-1163003999342,
 8859172575069,-67835214598017,521824159637718,
 -4030828937892966,31252886542570119,
 -243142210911325273,1897466281615297698]