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A208549
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Numbers m such that 2520*m/k + 1 is a prime for k = 1,...,7.
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2
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2189, 7208, 20538, 69632, 127790, 265375, 341267, 461849, 621457, 1453179, 1700469, 1828994, 1837608, 2114852, 2222674, 2354838, 2826692, 2905552, 2933084, 3162302, 3466663, 3972552, 3996543, 4535984, 5382039, 6192528, 6392223
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OFFSET
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1,1
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COMMENTS
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Equivalently, 7!*m/2+k equals k times a prime, for k=1,...,7. The primes 2520m+1 are listed in A207825, and are also the terms of the sequence A071369 which end in the digit "1".
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LINKS
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FORMULA
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PROG
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(PARI) {my(p=1); until(, isprime(p+=2520) | next; for(j=2, 7, isprime(p\j+1)|next(2)); print1(p\2520", "))}
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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