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A128038 Primes p such that p1=2p-33 and p2=2p+33 are consecutive primes. 0
129533, 141263, 212873, 323243, 381077, 393697, 449677, 486377, 525607, 583753, 693733, 774343, 988733, 1115453, 1138987, 1200887, 1204823, 1394083, 1419163, 1604143, 1661237, 1688887, 1760797, 1823567, 1825687, 1880363, 1972037 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..27.

EXAMPLE

{p,p1,p2,pi(p1),pi(p2)}:{129533,259033,259099,22765,22766},{141263,282493,282559,24644,24645},{212873,425713,425779,35832,35833},{323243,646453,646519,52557,52558},{381077,762121,762187,61145,61146},{393697,787361,787427,63011,63012}.

MAPLE

a:=proc(n) if isprime(n)=true and isprime(2*n-33)=true and nextprime(2*n-33)=2*n+33 then n else fi end: seq(a(n), n=1..3000000); # Emeric Deutsch, May 09 2007

MATHEMATICA

cp66Q[n_]:=Module[{p1=2n-33}, PrimeQ[p1]&&NextPrime[p1]-p1==66]; Select[Prime[Range[150000]], cp66Q]  (* Harvey P. Dale, Mar 24 2011 *)

CROSSREFS

Cf. A103806.

Sequence in context: A232122 A232420 A114668 * A210273 A250961 A225026

Adjacent sequences:  A128035 A128036 A128037 * A128039 A128040 A128041

KEYWORD

nonn

AUTHOR

Zak Seidov, May 07 2007

EXTENSIONS

More terms from Emeric Deutsch, May 09 2007

STATUS

approved

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Last modified September 26 23:44 EDT 2022. Contains 357051 sequences. (Running on oeis4.)