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A168537 The lesser of twin primes p of the form p*q+a+b+c, (p and q are twin primes, p+2=q, a=p-1, b=(p+q)/2, c=q+1). 0
179, 10709, 32939, 122147, 326609, 1105649, 1516589, 1699109, 2218607, 2787227, 12670037, 17052767, 37106369, 45744929, 74468267, 81784889, 101394827, 142599419, 150148259, 205162649, 377272349, 668196647, 816444899, 853194887 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..24.

EXAMPLE

11*13+10+12+14=179,..

MATHEMATICA

lst={}; Do[p=Prime[n]; q=p+2; If[PrimeQ[q], a=p-1; b=p+1; c=q+1; If[PrimeQ[x=p*q+a+b+c]&&PrimeQ[p*q+a+b+c+2], AppendTo[lst, x]]], {n, 8!}]; lst

CROSSREFS

Cf. A168536

Sequence in context: A069796 A177682 A142968 * A130736 A200955 A101995

Adjacent sequences:  A168534 A168535 A168536 * A168538 A168539 A168540

KEYWORD

nonn

AUTHOR

Vladimir Joseph Stephan Orlovsky, Nov 28 2009

STATUS

approved

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Last modified June 18 23:16 EDT 2021. Contains 345125 sequences. (Running on oeis4.)