164643domain: NAppears in sequencesLet p(k) denote k-th prime; consider solutions (p(n),p(m)) of Diophantine equation p(p(n)+1)-6.p(p(m))=1 (*), where p(p(n)) belongs to A060213 and p(p(m))=(p(p(n))+1)/6; sequence gives values of p(n).at n=19A065505Numbers k such that (26*10^k - 167)/3 is prime.at n=22A294678