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A025170 as a simple table

na(n)
01
1-2
2-5
328
4-11
5-230
6559
7952
8-6935
95302
1051811
11-151340
12-163619
131689298
14-1906025
15-11391632
1639937489
1722649710
18-404736821
19605626252
202431378885
21-10313394038
22-1255621889
2395331790120
24-179362983239
25-499260144602
262612787138355
27-732232975292

[1,-2,-5,28,-11,-230,559,952,-6935,5302,51811,
 -151340,-163619,1689298,-1906025,-11391632,
 39937489,22649710,-404736821,605626252,2431378885,
 -10313394038,-1255621889,95331790120,
 -179362983239,-499260144602,2612787138355,
 -732232975292]