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A012584 as a simple table

na(n)
01
11
23
39
433
5145
6715
73801
821889
9140001
10974803
116947017
1250720417
13421135793
143950147227
1533562929817
16240061039105
172672302901185
1845695167547043
19388308372326665
20-1858226878271967
219709607588675537

[1,1,3,9,33,145,715,3801,21889,140001,974803,
 6947017,50720417,421135793,3950147227,33562929817,
 240061039105,2672302901185,45695167547043,
 388308372326665,-1858226878271967,
 9709607588675537]