167021domain: NPropertiesPrimalityPrimeyesAppears in sequencesConsider all integer triples (i,j,k), j,k>0, with i^3=j^3+binomial(k+2,3), ordered by increasing i; sequence gives i values.at n=40A054234Lesser of twin primes such that both twin primes have no bases b, 1 < b < p-1, in which p is a palindrome.at n=20A138348Prime numbersat n=15257