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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A144264 Numbers n such that A014085(n)=A014085(n+1). 3
1, 2, 12, 18, 20, 21, 29, 36, 59, 66, 71, 73, 88, 90, 94, 95, 103, 104, 109, 128, 130, 131, 161, 166, 170, 209, 234, 250, 292, 299, 307, 318, 332, 353, 362, 375, 377, 391, 481, 509, 556, 557, 564, 577, 602, 619, 630, 665, 670, 684, 698, 728, 792, 808, 840 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

COMMENTS

Numbers n such that number of primes between n^2 and (n+1)^2 is equal to number of primes between (n+1)^2 and (n+2)^2.

Conjecture: the sequence is infinite.

LINKS

Zak Seidov, Table of n, a(n) for n=1..2000

CROSSREFS

Cf. A014085

Sequence in context: A057827 A082407 A063576 * A120350 A032413 A190044

Adjacent sequences:  A144261 A144262 A144263 * A144265 A144266 A144267

KEYWORD

nonn

AUTHOR

Zak Seidov (zakseidov(AT)yahoo.com), Sep 16 2008, Sep 17 2008

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 16 21:42 EST 2012. Contains 205977 sequences.