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A248417 as a simple table

na(n)
03
1-25
2563
3-13297
4314947
5-7460905
6176745971
7-4187046273
899189570819
9-2349764090041
1055665038509363
11-1318684086371985
1231239136201419331
13-740043533319442377
1417531356426655688179
15-415311321997288071457
169838570957172556010499
17-233072091590971314359129
185521391278779936334581299

[3,-25,563,-13297,314947,-7460905,176745971,
 -4187046273,99189570819,-2349764090041,
 55665038509363,-1318684086371985,
 31239136201419331,-740043533319442377,
 17531356426655688179,-415311321997288071457,
 9838570957172556010499,-233072091590971314359129,
 5521391278779936334581299]