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A014993 as a simple table

na(n)
11
2-10
3111
4-1220
513421
6-147630
71623931
8-17863240
9196495641
10-2161452050
1123775972551
12-261535698060
132876892678661
14-31645819465270
15348104014117971
16-3829144155297680
1742120585708274481

[1,-10,111,-1220,13421,-147630,1623931,-17863240,
 196495641,-2161452050,23775972551,-261535698060,
 2876892678661,-31645819465270,348104014117971,
 -3829144155297680,42120585708274481]