Here are files produced by the LINUX shell's commands like this
(a typical input file see here):
Singular -e <input >output.log
They contain the computation of I(a,0,Z/nZ) for the following values of n (including all primes up to 599):
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
29
31
32
33=3*11
34
35
!!37!!
39=3*13
41
43
47
49
51=3*17
53
55
57=3*19
59
60=12*5
61
67
69=3*23
71
73
74=37*2
75=3*25
79
81=3^4
83
87=3*29
89
97
101
103
107
109
113
127
131
132=12*11
137
139
149
151
156=12*13
157
163
167
173
179
181
185=37*5
191
193
197
199
204=12*17
211
223
227
228=12*19
229
233
239
241
243=3^5
251
257
263
269
271
276=12*23
277
281
283
293
307
311
313
317
331
337
347
349
353
359
367
373
379
383
389
397
401
407=37*11
409
419
421
431
433
439
443
449
457
461
463
467
479
481=37*13
487
491
499
503
509
521
523
541
547
557
563
569
571
577
587
593
599
629=37*17
703=37*19
729=3^6
851=37*23
1073=37*29
1147=37*31
1369=37^2
1517=37*41
1591=37*43
1739=37*47
1887=37*3*17
1961=37*53
2183=37*59
2257=37*61
2479=37*67
50653=37^3
ta.zip -- all these files zipped