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A083577
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Prime star numbers.
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5
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13, 37, 73, 181, 337, 433, 541, 661, 937, 1093, 2053, 2281, 2521, 3037, 3313, 5581, 5953, 6337, 6733, 7561, 7993, 8893, 10333, 10837, 11353, 12421, 12973, 13537, 15913, 18481, 20533, 21961, 25741, 27337, 32413, 33301, 36037, 36973, 42841
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refs;
listen;
history;
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internal format)
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OFFSET
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1,1
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COMMENTS
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Except for the first 3 terms, a subsequence of A057199 (see comment in A057199). - Chai Wah Wu, Sep 16 2019
All prime star numbers are Pythagorean primes, primes of the form 4*k + 1 (A002144), because all star numbers (A003154) are of the form 12*k + 1. - John Elias, Jan 25 2021
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LINKS
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Zak Seidov, Table of n, a(n) for n = 1..1000
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PROG
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(PARI) for(n=1, 150, s=6*n*(n-1)+1; if(isprime(s), print1(s", ")))
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CROSSREFS
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Cf. A002144, A003154, A057199.
Sequence in context: A113601 A158864 A003154 * A155285 A155262 A155301
Adjacent sequences: A083574 A083575 A083576 * A083578 A083579 A083580
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KEYWORD
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easy,nonn
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AUTHOR
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Jason Earls, Jun 13 2003
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STATUS
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approved
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