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A024123 as a simple table

na(n)
01
19
2-412
3-18683
4-252144
5-1853125
6-9077696
7-30353607
8-34217728
9612579511
109000000000
1197642052309
12994840219648
139989395500627
1499979338953216
15999961556640625
169999931280523264
1799999881412123503

[1,9,-412,-18683,-252144,-1853125,-9077696,
 -30353607,-34217728,612579511,9000000000,
 97642052309,994840219648,9989395500627,
 99979338953216,999961556640625,9999931280523264,
 99999881412123503]