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A101448
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Nonnegative numbers k such that 2k + 11 is prime.
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23
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0, 1, 3, 4, 6, 9, 10, 13, 15, 16, 18, 21, 24, 25, 28, 30, 31, 34, 36, 39, 43, 45, 46, 48, 49, 51, 58, 60, 63, 64, 69, 70, 73, 76, 78, 81, 84, 85, 90, 91, 93, 94, 100, 106, 108, 109, 111, 114, 115, 120, 123, 126, 129, 130, 133, 135, 136, 141, 148, 150, 151, 153, 160, 163
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OFFSET
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1,3
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COMMENTS
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2 is the smallest single-digit prime and 11 is the smallest two-digit prime.
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LINKS
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EXAMPLE
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If n=1, then 2*1 + 11 = 13 (prime).
If n=49, then 2*49 + 11 = 109 (prime).
If n=69, then 2*69 + 11 = 149 (prime).
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MAPLE
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select(k-> isprime(11+2*k), [$0..200])[]; # Alois P. Heinz, Jun 02 2022
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MATHEMATICA
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PROG
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(Sage) [n for n in (0..200) if is_prime(2*n+11) ] # G. C. Greubel, May 21 2019
(GAP) Filtered([0..200], k-> IsPrime(2*k+11) ) # G. C. Greubel, May 21 2019
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CROSSREFS
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KEYWORD
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easy,nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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