OFFSET
1,1
LINKS
K. D. Bajpai, Table of n, a(n) for n = 1..5736
EXAMPLE
27*6 + 1 = 163 which is prime. Hence 6 is in the sequence.
MAPLE
isA224467 := proc(n)
isprime(27*n+1) ;
end proc:
for n from 1 to 300 do
if isA224467(n) then
printf("%d, ", n) ;
end if;
end do: # R. J. Mathar, Jul 20 2013
MATHEMATICA
Select[Range[300], PrimeQ[27#+1]&] (* Harvey P. Dale, Apr 14 2017 *)
PROG
(PARI) is(n)=isprime(27*n+1) \\ Charles R Greathouse IV, Jun 06 2017
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
K. D. Bajpai, Jul 20 2013
STATUS
approved