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Search: id:A147972
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| A147972 |
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Smallest prime p modulo which the first n primes are non-zero quadratic residues. |
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+0
1
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| 7, 23, 71, 311, 479, 1559, 5711, 10559, 18191, 31391, 366791, 366791, 366791, 3818929, 9257329, 22000801, 36415991, 48473881, 120293879, 120293879, 131486759, 131486759
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OFFSET
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1,1
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COMMENT
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The same primes without repetitions are listed in A147970. a(n) <= min{A002223(n),A002224(n)}. What is the smallest n for which this inequality is strict?
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CROSSREFS
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Cf. A000229, A002223, A002224, A045535, A053760, A133435, A147969, A147970, A147971
Sequence in context: A141194 A045535 A001984 this_sequence A002223 A034563 A048539
Adjacent sequences: A147969 A147970 A147971 this_sequence A147973 A147974 A147975
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KEYWORD
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more,nonn
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AUTHOR
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Max Alekseyev (maxale(AT)gmail.com), Nov 18 2008
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