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A073614
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Numbers m such that m*(prime(m)+1) is a square.
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0
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150, 1274, 7776, 37631, 96625, 1436778, 1617173, 8751645, 11873964, 78580934, 391317723, 403263375, 429830078, 1653987950, 1989687200, 2125840598, 2546468442, 8179002128, 8179002164, 8179002192, 30860615042, 31374585176
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OFFSET
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1,1
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COMMENTS
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LINKS
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MAPLE
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for i from 1 to 250000 do `if`(issqr(i*(ithprime(i)+1))=true, i, NULL); od;
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PROG
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(PARI) isok(m) = issquare(m*(prime(m)+1)); \\ Michel Marcus, Feb 18 2021
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CROSSREFS
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KEYWORD
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nonn,more
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AUTHOR
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EXTENSIONS
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More terms from Francois Jooste (pin(AT)myway.com), Mar 16 2003
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STATUS
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approved
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