Prime numbers p such that 0 < pi(p;10,(9,1)) = pi(p;10,(3,9)) where pi(x;q,(a,b)) is the number of primes p_n <= x such that p_n == a (mod q) and p_(n+1) == b (mod q).

A326897

Prime numbers p such that 0 < pi(p;10,(9,1)) = pi(p;10,(3,9)) where pi(x;q,(a,b)) is the number of primes p_n <= x such that p_n == a (mod q) and p_(n+1) == b (mod q).