OFFSET
1,1
LINKS
Robert Israel, Table of n, a(n) for n = 1..10000
EXAMPLE
a(3) = 47 is in the sequence because 47 is prime, the next two primes are 53 and 59, and with k - 50 and m = 54, all of 47+50=97, 53+50=103, 53+54=107 and 59+54=113 are prime.
MAPLE
R:= NULL: count:= 0: thisp:= false:
q:= 2: r:= 3:
while count < 100 do
lastp:= thisp; thisp:= false;
p:= q; q:= r; r:= nextprime(r);
for k from (q+1)/2 to (r-1)/2 do
if isprime(q+2*k) and isprime(r+2*k) then
thisp:= true; break
fi
od;
if thisp and lastp then R:= R, p; count:= count+1 fi;
od:
R;
CROSSREFS
KEYWORD
nonn
AUTHOR
J. M. Bergot and Robert Israel, Oct 22 2020
STATUS
approved