Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A107989
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A107989 Primes p such that integer part of the volume of cube with faces of area p is prime. +0
1
2, 5, 11, 281, 839, 1201, 1499, 2081, 9769, 10091, 11483, 12583, 14221, 20089, 21491, 26417, 36931, 37633, 41621, 47251, 47903, 52889, 64781, 72643, 73019, 75541, 88037, 93701, 94111, 121937, 122533, 138041, 139439, 143503, 147289, 179917 (list; graph; listen)
OFFSET

1,1

FORMULA

V = floor(sqrt(p)^3), p is prime and the area of the face of a cube.

EXAMPLE

p = 5, volume = floor(sqrt(5)^3) = 11 a prime.

PROGRAM

(PARI) g(n) = forprime(x=2, n, y=floor(sqrt(x)^3); if(isprime(y), print1(y, ", ")))

CROSSREFS

Adjacent sequences: A107986 A107987 A107988 this_sequence A107990 A107991 A107992

Sequence in context: A123165 A098438 A064772 this_sequence A069504 A101828 A071293

KEYWORD

easy,nonn

AUTHOR

Cino Hilliard (hillcino368(AT)gmail.com), Jun 13 2005

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 May 16 23:01 EDT 2008. Contains 139884 sequences.


AT&T Labs Research