OFFSET
1,1
LINKS
Robert Israel, Table of n, a(n) for n = 1..10000
EXAMPLE
a(3) = 797 is a term because 797, 809, 811, 821 are consecutive primes with (809*811-797*821)/2 = 881 prime.
MAPLE
R:= NULL: count:= 0:
q:= 3: r:= 5: s:= 7:
while count < 100 do
p:= q; q:= r; r:= s; s:= nextprime(s);
if isprime((q*r-p*s)/2) then
count:= count+1; R:= R, p;
fi
od:
R;
CROSSREFS
KEYWORD
nonn
AUTHOR
J. M. Bergot and Robert Israel, Mar 14 2021
STATUS
approved