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Old 2020-01-01, 20:54   #7
rudy235
 
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Jun 2015
Vallejo, CA/.

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I have found the first occurrences of many of the missing gaps.
Code:
GAP      after prime
41       181773281
55        72506501
113       51633731
160       78139751
167       46187831
172       45290801
174       23482001
181       33113651
I believe all gaps (except the obvious 2mod 7 and 5mod 7) are represented although a few that are 1 mod 7 and 6 mod 7 can sometimes be underrepresented.
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