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A034848 a(n) = P(n,3) = 1+3*K(n,3)=1+3*A034780(n). P(n,3) are special primes of 3k+1 form. The relevant values of k are given by A034782. See that e.g. 13,19,31,5,13 etc. are not in this sequence. 1
73, 97, 103, 193, 229, 241, 277, 283, 313, 331, 367, 373, 397, 433, 457, 463, 547, 607, 619, 643, 661, 709, 727, 733, 739, 757, 769, 823, 859, 883 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..30.

CROSSREFS

Cf. A034693, A034694, A034782.

Sequence in context: A065111 A152308 A072052 * A168110 A139972 A268426

Adjacent sequences:  A034845 A034846 A034847 * A034849 A034850 A034851

KEYWORD

nonn

AUTHOR

Labos Elemer

STATUS

approved

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Last modified February 25 18:44 EST 2018. Contains 299655 sequences. (Running on oeis4.)