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 A083577 Prime star numbers. 3
 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 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Zak Seidov, Table of n, a(n) for n = 1..1000 EXAMPLE a(1)=13 because .....()..... ..()()()().. ...()()()... ..()()()().. .....()..... is prime. PROG (PARI) for(n=1, 150, s=6*n*(n-1)+1; if(isprime(s), print1(s", "))) CROSSREFS Cf. A003154. Sequence in context: A113601 A158864 A003154 * A155285 A155262 A155301 Adjacent sequences:  A083574 A083575 A083576 * A083578 A083579 A083580 KEYWORD easy,nonn AUTHOR Jason Earls, Jun 13 2003 STATUS approved

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Last modified December 12 19:33 EST 2018. Contains 318081 sequences. (Running on oeis4.)