Primes for which only four iterations of 'Prime plus its digit sum equals a prime' are possible.

A048526

Primes for which only four iterations of 'Prime plus its digit sum equals a prime' are possible.

Terms

    a(0) =37783a(1) =85601a(2) =259631a(3) =268721a(4) =350941a(5) =371939a(6) =378901a(7) =516521a(8) =665111a(9) =733331a(10) =883331a(11) =967781a(12) =1047929a(13) =1056521a(14) =1081721a(15) =1258811a(16) =1427411a(17) =1480573a(18) =1515929a(19) =1584901a(20) =1614929a(21) =1842131a(22) =1875311a(23) =1885981a(24) =2027801a(25) =2044873a(26) =2450531

External references