login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A086149 Primes p with property that p + 32 is also prime and there are seven primes between p and p + 32. 1
29, 41, 416387, 626597, 6560987, 6937937, 25658429, 25658441, 29597411, 49136357, 51448361, 57405419, 90279461, 128469149, 137943341, 162189089, 165531251, 175182587 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..18.

MATHEMATICA

cp[x_, y_] := Count[Table[PrimeQ[i], {i, x, y}], True] Do[s=Prime[n]; s1=Prime[n+1]; If[PrimeQ[s+32]&& Equal[cp[s+1, s+d-1], 7], Print[s]], {n, 1, 1000000}]

Select[Partition[Prime[Range[98*10^5]], 9, 1], Last[#]-First[#]==32&] [[All, 1]] (* Harvey P. Dale, Sep 12 2017 *)

CROSSREFS

Cf. A049489.

Sequence in context: A106019 A084163 A181622 * A066502 A125870 A076439

Adjacent sequences:  A086146 A086147 A086148 * A086150 A086151 A086152

KEYWORD

nonn

AUTHOR

Labos Elemer, Jul 29 2003

EXTENSIONS

Definition clarified by Harvey P. Dale, Sep 12 2017

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified September 15 20:35 EDT 2019. Contains 327087 sequences. (Running on oeis4.)