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A105962 Numbers k such that prime(k^2) - k is prime. 2
2, 30, 38, 44, 74, 82, 88, 96, 106, 114, 132, 138, 140, 160, 162, 184, 230, 276, 278, 280, 298, 304, 316, 318, 332, 342, 414, 420, 428, 450, 470, 480, 540, 580, 584, 600, 638, 668, 672, 678, 680, 684, 728, 750, 754, 766, 768, 788, 798, 848, 858, 860, 902, 930 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Jinyuan Wang, Table of n, a(n) for n = 1..500

MATHEMATICA

Select[Range[1000], PrimeQ[Prime[ #^2] - # ] &]

PROG

(PARI) is(k) = isprime(prime(k^2)-k); \\ Jinyuan Wang, Apr 10 2020

CROSSREFS

Cf. A064269 (prime(k) - k is prime), A130135 (prime(k^3) - k is prime).

Sequence in context: A022377 A145290 A127026 * A113695 A098827 A280380

Adjacent sequences:  A105959 A105960 A105961 * A105963 A105964 A105965

KEYWORD

nonn

AUTHOR

Tanya Khovanova, Dec 26 2006

STATUS

approved

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Last modified September 21 13:20 EDT 2020. Contains 337272 sequences. (Running on oeis4.)