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A075281 Interprimes which are of the form s*prime, s=6. 0
12, 18, 30, 42, 102, 138, 186, 246, 282, 426, 582, 618, 642, 822, 834, 1158, 1698, 1878, 2022, 2082, 2094, 2238, 2382, 2526, 2658, 2802, 2922, 2946, 3462, 3522, 3558, 3714, 3786, 3858, 3918, 4038, 4146, 4206, 4638, 4722, 4866, 4962, 5442, 5946, 6126 (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..45.

EXAMPLE

138 is an interprime and 138/6 = 23 is prime.

MATHEMATICA

s=6; Select[Table[(Prime[n+1]+Prime[n])/2, {n, 2, 1000}], PrimeQ[ #/s]&]

CROSSREFS

Cf. A075277--A075296.

Sequence in context: A112054 A167597 A138636 * A171179 A007371 A079479

Adjacent sequences:  A075278 A075279 A075280 * A075282 A075283 A075284

KEYWORD

easy,nonn

AUTHOR

Zak Seidov, Sep 12 2002

STATUS

approved

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Last modified May 21 02:08 EDT 2013. Contains 225472 sequences.