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A108855 Numbers n such that 10*n + 127 is prime. 1
0, 1, 3, 4, 7, 10, 13, 15, 18, 19, 21, 22, 24, 27, 33, 34, 36, 42, 43, 45, 46, 48, 49, 52, 55, 60, 63, 66, 67, 70, 73, 75, 76, 78, 81, 82, 84, 85, 87, 96, 97, 99, 106, 109, 111, 115, 117, 118, 120, 124, 130, 132, 136, 144, 147, 148, 150, 151, 153, 154, 157, 162, 165, 166 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Harvey P. Dale, Table of n, a(n) for n = 1..1000

EXAMPLE

If n=0 then 10*n + 127 = 127 (prime).

If n=34 then 10*n + 127 = 467 (prime).

MAPLE

a:=proc(n) if isprime(10*n+127)=true then n else fi end: seq(a(n), n=0..200); # Emeric Deutsch, Jul 16 2005

MATHEMATICA

Select[Range[0, 200], PrimeQ[10#+127]&] (* Harvey P. Dale, Feb 02 2015 *)

PROG

(PARI) is(n)=isprime(10*n+127) \\ Charles R Greathouse IV, Jun 12 2017

CROSSREFS

Sequence in context: A137294 A282573 A177959 * A026488 A108579 A332822

Adjacent sequences:  A108852 A108853 A108854 * A108856 A108857 A108858

KEYWORD

nonn,easy

AUTHOR

Parthasarathy Nambi, Jul 11 2005

EXTENSIONS

More terms from Emeric Deutsch, Jul 16 2005

STATUS

approved

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Last modified April 22 09:30 EDT 2021. Contains 343174 sequences. (Running on oeis4.)