Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A064371
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A064371 Zero, together with positive numbers n such that the n-th prime + n is a square. +0
5
0, 5, 12, 86, 105, 176, 214, 230, 241, 412, 503, 696, 1065, 1147, 1170, 1273, 1334, 2021, 2455, 2600, 2660, 2772, 3299, 3332, 3365, 4417, 4861, 6478, 6572, 8115, 8858, 8905, 9229, 9380, 9590, 9692, 9749, 10501, 10829, 11338, 11633, 11690, 12099 (list; graph; listen)
OFFSET

1,2

LINKS

Harry J. Smith, Table of n, a(n) for n=1,...,300

PROGRAM

(PARI) j=[]; for(n=0, 20000, if(n==0 || issquare(prime(n)+n), j=concat(j, n))); j

(PARI) { n=0; default(primelimit, 20000000); for (m=0, 10^9, if (m==0 || issquare(prime(m) + m), write("b064371.txt", n++, " ", m); if (n==300, break)) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Sep 14 2009]

CROSSREFS

Cf. A014688.

Sequence in context: A156236 A128323 A074245 this_sequence A009414 A009426 A009731

Adjacent sequences: A064368 A064369 A064370 this_sequence A064372 A064373 A064374

KEYWORD

easy,nonn

AUTHOR

Jason Earls (zevi_35711(AT)yahoo.com), Sep 26 2001

EXTENSIONS

Edited by Harry J. Smith (hjsmithh(AT)sbcglobal.net), Sep 14 2009

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 December 20 00:58 EST 2009. Contains 171054 sequences.


AT&T Labs Research