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A075280 Interprimes which are of the form s*prime, s=5. 0
15, 205, 515, 1465, 1795, 1895, 2105, 3265, 3505, 3665, 4105, 4415, 4535, 4555, 4685, 5045, 6185, 7115, 7835, 8135, 8185, 9655, 9865, 10085, 10645, 11015, 11405, 12085, 12295, 12385, 13235, 14395, 16045, 16355, 16735, 17065 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Interprimes which are of the form s*prime are in A075277-A075296 (s = 2-21). Case s = 1 is impossible.

LINKS

Table of n, a(n) for n=1..36.

EXAMPLE

205 is an interprime and 205/5 = 41 is prime.

MATHEMATICA

s=5; Select[Table[(Prime[n+1]+Prime[n])/2, {n, 2, 1000}], PrimeQ[ #/s]&]

CROSSREFS

Cf. A075277-A075296.

Sequence in context: A216465 A215903 A070968 * A093747 A061637 A231546

Adjacent sequences:  A075277 A075278 A075279 * A075281 A075282 A075283

KEYWORD

easy,nonn

AUTHOR

Zak Seidov, Sep 12 2002

STATUS

approved

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Last modified September 17 06:41 EDT 2019. Contains 327119 sequences. (Running on oeis4.)