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A024027 as a simple table

na(n)
01
12
2-7
3-54
4-175
5-382
6-567
7-214
82465
913122
1049049
11162506
12510705
131565762
144744553
1514298282
1642981185
17129056642
18387315513
191162131146
203486624401
2110460158722
2231380825353
2394142898986
24282429204705

[1,2,-7,-54,-175,-382,-567,-214,2465,13122,49049,
 162506,510705,1565762,4744553,14298282,42981185,
 129056642,387315513,1162131146,3486624401,
 10460158722,31380825353,94142898986,282429204705]