Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A079015
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A079015 Primes introducing consecutive prime 6-tuple of primes or 5-tuple corresponding consecutive p-difference pattern as follows: {d,2d,4d,8d,16d}. +0
3
6824897, 10132607, 12674657, 13699457, 14148047, 27353237, 43918997, 44152307, 50608007, 53944337, 60426257, 60825827, 61325057, 68721047, 68933717, 72069707, 78577817, 82108127, 82334297, 87020177, 88226777, 97013927 (list; graph; listen)
OFFSET

1,1

EXAMPLE

p[45277466]=884909087 is followed by {2,4,8,16,32,10,50..} difference pattern, p[9312431]=166392559 initiate {4,8,16,32,64,14,30...} difference pattern of consecutive primes. First 5 d increase exponentially.

MATHEMATICA

d[x_] := Prime[x+1]-Prime[x] k=0; Do[s=d[n]; If[Equal[d[n+1], 2*s]&&Equal[d[n+2], 4*s]&&Equal[d[n+3], 8*s] &&Equal[d[n+4], 16*s], k=k+1; Print[{n, Prime[n], s, 2*s, d[n+2], d[n+3], d[n+4]}]], {n, 1, 100000000}]

CROSSREFS

Cf. A079011-A079014.

Sequence in context: A022237 A116173 A088238 this_sequence A157797 A106786 A088286

Adjacent sequences: A079012 A079013 A079014 this_sequence A079016 A079017 A079018

KEYWORD

nonn

AUTHOR

Labos E. (labos(AT)ana.sote.hu), Jan 22 2003

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


AT&T Labs Research