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A118279 as a simple table

na(n)
30
4-1
5210
6638
71348
8-1
95282
107687
1112453
12-1
1324813
14-1
1545338
16-1
1763702
1884764
19109613
20-1
21162687
22155879
23224244
24-1
25303049
26-1
27353690
28-1
29522262
30541796
31651844
32-1
33817053

[0,-1,210,638,1348,-1,5282,7687,12453,-1,24813,-1,
 45338,-1,63702,84764,109613,-1,162687,155879,
 224244,-1,303049,-1,353690,-1,522262,541796,
 651844,-1,817053]