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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A092962 Primes (A092961(n)-1)/n. 2
3, 2, 3, 2, 5, 2, 11, 2, 7, 2, 5, 5, 3, 17, 3, 5, 17, 3, 3, 2, 7, 2, 7, 3, 3, 5, 5, 2, 11, 2, 17, 2, 3, 2, 19, 7, 5, 2, 3, 17, 5, 2, 3, 2, 3, 5, 5, 2, 3, 2, 11, 17, 7, 3, 11, 2, 11, 3, 11, 3, 11, 29, 3, 11, 5, 2, 41, 5, 19, 2, 71, 11, 3, 2, 5, 17, 5, 7, 3, 11, 5, 5, 37, 2, 11, 2, 17, 3, 11, 3, 11, 2 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..92.

PROG

(PARI) a(n)=for(i=1, 10+n^3, if(Mod(i-1, n)==0 && isprime((i-1)/n) && isprime(i*n+1), return((i-1)/n)))

CROSSREFS

Cf. A092961, A092963.

Sequence in context: A249800 A165258 A238393 * A258778 A112924 A267148

Adjacent sequences:  A092959 A092960 A092961 * A092963 A092964 A092965

KEYWORD

nonn

AUTHOR

Amarnath Murthy, Mar 25 2004

EXTENSIONS

More terms from Mohammed Bouayoun (bouyao(AT)wanadoo.fr), Mar 26 2004

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 March 25 20:10 EDT 2019. Contains 321477 sequences. (Running on oeis4.)