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A002250 as a simple table

na(n)
0-1
1-2
2-2
310
494
5538
62638
712010
852414
9222778
10930478
113840010
1215714334
1363920218
14258869518
151045044010
164208873854
1716921588858
1867944635758
19272553384010
201092538058974
214377125804698
2217529423925198
2370180457820010
24280910117637694
251124205329623738
264498515895713838

[-1,-2,-2,10,94,538,2638,12010,52414,222778,
 930478,3840010,15714334,63920218,258869518,
 1045044010,4208873854,16921588858,67944635758,
 272553384010,1092538058974,4377125804698,
 17529423925198,70180457820010,280910117637694,
 1124205329623738,4498515895713838]